Posted by Hotels near Italy’s rivers
Riverfront hotels are popular in cities like Rome, Florence and Verona.
Booking early often means better prices and better locations.
Top 10 longest rivers in Italy
| Rank | River | Approx. length | Main regions | Flows into |
|---|---|---|---|---|
| 1 | Po | 652 km | Piedmont, Lombardy, Emilia-Romagna, Veneto | Adriatic Sea |
| 2 | Adige | 410 km | Trentino-South Tyrol, Veneto | Adriatic Sea |
| 3 | Tiber | 405 km | Emilia-Romagna, Tuscany, Umbria, Lazio | Tyrrhenian Sea |
| 4 | Adda | 313 km | Lombardy | Po |
| 5 | Oglio | 280 km | Lombardy | Po |
| 6 | Tanaro | 276 km | Piedmont, Liguria | Po |
| 7 | Ticino | 248 km | Switzerland, Piedmont, Lombardy | Po |
| 8 | Arno | 241 km | Tuscany | Tyrrhenian Sea |
| 9 | Piave | 220 km | Veneto | Adriatic Sea |
| 10 | Reno | about 211 km | Tuscany, Emilia-Romagna | Adriatic Sea |
This ranking follows the commonly quoted geographical lengths of the rivers. The figures can vary slightly between sources because the exact starting point of a river or one of its headwaters is not always defined in exactly the same way. The standard ranking places the Po first, followed by the Adige, Tiber, Adda, Oglio, Tanaro, Ticino, Arno, Piave and Reno.
Tours and activities in Italy
Many of Italy’s best-known rivers pass through major sightseeing destinations. Guided walking tours, boat trips and city tours are available in places such as Rome, Florence, Turin and Verona.
1. Po – 652 km
The Po is the longest river in Italy and the dominant river system of northern Italy. It rises in the western Alps in Piedmont and flows east across the great plain that bears its name before reaching the Adriatic Sea through a large delta.
At approximately 652 kilometres, the Po is considerably longer than any other river in the country.
The Po basin is particularly important for agriculture. The surrounding plain contains some of Italy’s most productive farmland and is also one of the country’s principal industrial and population regions.
The river is fed by numerous tributaries coming from both the Alps and the Apennines. Several rivers that appear separately in this top-ten ranking – including the Adda, Oglio, Tanaro and Ticino – eventually flow into the Po.
Po and Turin
One of the best places for tourists to see the river is Turin. The Po passes close to the historic centre and provides a completely different side to a city better known for royal palaces, museums and elegant squares.
Visitors travelling through northern Italy can also combine destinations around the Po Valley with Milan, although the Po itself does not flow through central Milan.
Useful regional guides include:
Po Delta
Near the Adriatic coast, the Po divides into several branches and forms an extensive delta. The landscape is characterized by wetlands, lagoons, agricultural land and waterways rather than large cities.
This lower section looks very different from the Alpine landscapes near the river’s source and shows how varied the Po is over its long course.
2. Adige – 410 km
At about 410 kilometres, the Adige is Italy’s second-longest river. It begins in the Alpine region close to the Austrian and Swiss borders and flows south through South Tyrol and Trentino before turning towards the Adriatic.
The river is particularly interesting for tourists because it runs through a series of attractive mountain valleys and historic cities.
Bolzano and Trento
The upper and middle Adige valley is one of the most important transport corridors through the Alps. Towns and cities have developed along the river for centuries.
For visitors, Verona provides perhaps the most impressive urban views of the Adige. The river bends around much of the historic centre and is crossed by several bridges.
The Adige eventually reaches the Adriatic south of the Venetian Lagoon.
3. Tiber – 405 km
The Tiber, or Tevere in Italian, is approximately 405 kilometres long. It is Italy’s third-longest river and the longest major river of peninsular Italy.
Its geographical importance is substantial, but its historical importance is even greater because it flows through Rome.
The river of Rome
Ancient Rome developed beside the Tiber, which provided water, transport connections and access towards the Mediterranean. The river consequently appears repeatedly in Roman history and mythology.
Today high embankments separate much of central Rome from the water, but visitors can still walk beside the Tiber and cross it on numerous historic bridges.
Tiber Island
One of the most interesting places directly associated with the river is Tiber Island. The small island lies in the middle of the river in central Rome and is connected to both banks by bridges.
Downstream from Rome, the Tiber continues towards the Tyrrhenian Sea near Ostia.
4. Adda – 313 km
The Adda is approximately 313 kilometres long, making it Italy’s fourth-longest river and one of the principal Alpine tributaries of the Po.
Unlike the three longer rivers, the Adda does not reach the sea directly. Instead, it flows into the Po.
The river rises in the Alps of northern Lombardy and passes through the Valtellina before entering Lake Como. It later emerges from the lake and continues south through Lombardy.
This makes the Adda particularly interesting geographically: parts of its course resemble a fast Alpine river, while farther south it flows through lower and flatter landscapes.
The Adda also demonstrates why northern Italy dominates a ranking of the country’s longest rivers. Alpine catchments feed large tributaries that eventually combine to form the enormous Po river system.
Visitors exploring this region can find more information in our Lombardy guide.
5. Oglio – 280 km
At around 280 kilometres, the Oglio is another major northern Italian river and a tributary of the Po.
Its headwaters begin in the Alpine environment of northern Lombardy. The river flows through Val Camonica before entering Lake Iseo.
After leaving Lake Iseo, the Oglio continues across the plains of Lombardy and eventually reaches the Po.
Because it passes through a lake, mountain valleys and lowland agricultural areas, the Oglio illustrates the wide variety of landscapes found within northern Italy’s river systems.
It is much less internationally famous than the Tiber or Arno, but in terms of length it is actually considerably longer than the Arno.
6. Tanaro – 276 km
The Tanaro has a commonly quoted length of approximately 276 kilometres, although measurements can differ depending on which headwater is considered the starting point.
The river flows mainly through Piedmont and eventually joins the Po.
It drains an extensive area of north-western Italy and passes through landscapes associated with some of Piedmont’s best-known agricultural and wine-producing districts.
The Tanaro does not have the same tourist recognition as rivers flowing through Rome or Florence, but geographically it deserves its high position in the ranking.
7. Ticino – about 248 km
The Ticino is approximately 248 kilometres long when its complete course from Switzerland into Italy is considered. It originates in Switzerland before entering Lake Maggiore and subsequently continuing through Piedmont and Lombardy to the Po.
For that reason, the Ticino requires a small explanation in rankings of Italian rivers. It is an important river of Italy and commonly appears in lists of Italy’s longest rivers, but part of its total course lies in Switzerland.
Its Italian sections are nevertheless substantial and geographically important.
After leaving Lake Maggiore, the Ticino flows south through a largely green corridor before joining the Po close to Pavia.
The river and its associated parks provide a valuable natural area in one of the most densely populated parts of northern Italy.
8. Arno – 241 km
The Arno is about 241 kilometres long. It is the principal river of Tuscany and is the eighth-longest river in the standard Italian ranking – not the fourth, as is sometimes stated in simplified lists.
Despite being shorter than the Adda, Oglio, Tanaro and Ticino, the Arno is internationally much more famous because of the historic cities along its course.
Arno in Florence
The most famous section passes directly through Florence.
Here the river is crossed by several bridges, the best known being the Ponte Vecchio. The medieval bridge with its shops is one of Florence’s most recognizable landmarks.
The Arno later passes Pisa before reaching the Tyrrhenian Sea.
For travellers, the Arno is therefore one of the easiest Italian rivers to encounter during a normal sightseeing holiday.
9. Piave – 220 km
The Piave is approximately 220 kilometres long and flows almost entirely through Veneto before reaching the Adriatic.
It rises in the eastern Alps and flows south through mountain valleys before reaching the Venetian plain.
The Piave has considerable historical significance in Italy, particularly because of the fighting along the river during the First World War.
For modern visitors, the river also offers an interesting geographical link between the Dolomites and the Adriatic lowlands.
More information about destinations in this part of Italy can be found in our Veneto guide.
10. Reno – about 211 km
The Reno completes our top ten with a length of approximately 210 to 212 kilometres, depending on the source and measurement used. Standard Italian rankings usually place it immediately behind the Piave.
Despite its name, this is not the Rhine – called Reno in Italian – that flows through Switzerland, Germany and the Netherlands.
The Italian Reno rises in the northern Apennines in Tuscany and flows through Emilia-Romagna before reaching the Adriatic Sea.
It is an important river of the Bologna plain and one of the longer rivers originating in the Apennines.
Hotels near Italy’s rivers
Riverfront hotels are popular in cities like Rome, Florence and Verona.
Booking early often means better prices and better locations.
Why are Italy’s longest rivers mostly in the north?
A quick look at the ranking reveals a clear pattern. Most of Italy’s longest rivers are located in the north.
The Alps are one reason. They contain large drainage basins and receive substantial precipitation in the form of rain and snow. Water flows down towards the broad plains of northern Italy, where rivers can continue for hundreds of kilometres.
The Po Valley is especially important. Rather than every Alpine river flowing independently into the sea, many major rivers eventually join the Po.
The Adda, Oglio, Tanaro and Ticino are all examples. They rank among Italy’s longest rivers but are themselves tributaries of the Po.
The geography of central and southern Italy is different. The Italian peninsula is comparatively narrow, and the Apennine mountains run close to one coast or the other. Rivers therefore often have much shorter distances between their mountain sources and the sea.
What is the longest river in southern Italy?
Southern Italy does not contain rivers comparable in length to the Po or Adige.
The Volturno, approximately 175 kilometres long, is generally regarded as the longest river flowing entirely within southern mainland Italy. It crosses Molise and Campania before reaching the Tyrrhenian Sea.
The Volturno was included in the original version of our top-ten table, but it does not actually belong in Italy’s overall top ten because the Tanaro and Ticino are longer.
What is the longest river in Tuscany?
The Arno is Tuscany’s principal and longest major river at approximately 241 kilometres.
Its importance to travellers comes primarily from Florence and Pisa. Few other major European tourist cities are as visually connected to their river as Florence is to the Arno.
If you are planning a trip through the region, see our guide to Tuscany sights.
What is the longest river that flows through Rome?
Rome’s river is the Tiber. At approximately 405 kilometres, it is also the third-longest river in Italy.
The river played an essential part in the growth of ancient Rome, although modern visitors often spend surprisingly little time beside it compared with attractions such as the Colosseum, Roman Forum and Vatican.
A walk across the historic bridges or around Tiber Island is a simple way to include the river in a visit to Rome.
Which river flows through Florence?
Florence lies on the Arno. The historic centre developed on both sides of the river, and several famous bridges connect the two banks.
The best known is Ponte Vecchio, but good views of Florence and the river are also possible from neighbouring bridges and elevated viewpoints around the city.
Which river flows through Verona?
The river flowing through Verona is the Adige.
The historic centre occupies a distinctive bend in the river. As a result, the Adige forms a visible part of Verona’s cityscape rather than simply passing through its outskirts.
Tours and activities in Italy
Many of Italy’s best-known rivers pass through major sightseeing destinations. Guided walking tours, boat trips and city tours are available in places such as Rome, Florence, Turin and Verona.
Find hotels in Italy
Several of Italy’s most interesting cities developed directly beside major rivers. Staying near the historic centre in Rome, Florence, Turin or Verona makes it easier to explore both the riverfront and the main sights on foot.
FAQ: Longest rivers in Italy
What is the longest river in Italy?
The Po is the longest river in Italy. Its commonly quoted length is approximately 652 kilometres. It flows from the western Alps across northern Italy to the Adriatic Sea.
What are the three longest rivers in Italy?
The three longest are the Po at approximately 652 km, the Adige at 410 km and the Tiber at 405 km.
What is the fourth-longest river in Italy?
The Adda is the fourth-longest at approximately 313 kilometres. It flows through Lombardy and eventually joins the Po.
Is the Arno the fourth-longest river in Italy?
No. The Arno is approximately 241 kilometres long and normally ranks eighth. The Adda, Oglio, Tanaro and Ticino are all longer.
Which river flows through Rome?
The Tiber flows through Rome. It is approximately 405 kilometres long and is Italy’s third-longest river.
Which river flows through Florence?
The Arno flows through Florence. The famous Ponte Vecchio crosses the river in the historic centre.
Which river flows through Turin?
The Po flows through Turin. The city is one of the best places for visitors to see Italy’s longest river in an urban setting.
Which river flows through Verona?
The Adige flows through Verona. It makes a large bend around much of the historic centre.
Does the Po flow through Milan?
No. Milan lies within the wider Po Valley and Lombardy, but the Po does not flow through central Milan.
Does the Po flow through Venice?
No. The Po reaches the Adriatic south of Venice through the Po Delta. Venice itself is built within the Venetian Lagoon and is not situated on the Po.
Are Italy’s longest rivers mainly in northern Italy?
Yes. Most of the country’s longest rivers are in northern Italy, particularly within the Po basin. The Alps and the broad Po Valley allow rivers to develop much longer courses than is generally possible on the narrower Italian peninsula.
How many Italian rivers are longer than 300 km?
Four rivers exceed 300 kilometres: the Po, Adige, Tiber and Adda. Istat specifically identifies these four rivers as exceeding that length.
Is the Ticino entirely in Italy?
No. The Ticino rises in Switzerland before flowing into Italy, through Lake Maggiore and eventually into the Po. Its commonly stated total length of about 248 kilometres therefore includes its Swiss section.
Why do river lengths sometimes differ between websites?
Small differences are normal. River length depends on the exact source selected, the treatment of headwaters and the measurement method. This is why a river such as the Reno may be listed as 210, 211 or 212 kilometres depending on the source.
Conclusion: The Po dominates Italy’s river system
Italy does not have rivers comparable in length to the Danube, Rhine or Volga, largely because of the country’s shape and mountainous geography. Nevertheless, its rivers have had an enormous influence on settlement, agriculture and history.
The Po is clearly Italy’s longest river at around 652 kilometres. It is followed by the Adige at 410 kilometres and the Tiber at 405 kilometres. The Adda is the only other Italian river exceeding 300 kilometres.
The ranking also contains several names that are less familiar to international visitors. The Oglio, Tanaro and Ticino are all longer than Florence’s famous Arno, even though they receive much less attention from tourists.
For travellers, the most interesting rivers are not necessarily the longest. The Tiber is inseparable from the history of Rome, the Arno runs through the heart of Florence, the Adige shapes the historic centre of Verona and the Po can be seen in Turin before continuing across northern Italy.
Understanding these rivers also helps explain the geography of the country. Northern Italy contains the Alps, major lakes and the enormous Po drainage basin. Central and southern Italy are dominated by the narrower Apennine peninsula, where most rivers reach the sea after much shorter courses.
Whether you are planning a city break in Rome or Florence, travelling through the Alps or exploring the plains of northern Italy, the country’s rivers form an important part of the landscape.