This is a list of rivers which are at least partially located in Italy. They are organized according to the body of water they drain into, with the exceptions of Sicily and Sardinia, which are listed separately. At the bottom, all of the rivers are also listed alphabetically.
Italian rivers are generally shorter than those of other European regions because Italy is partly a peninsula along which the Apennine chain rises, dividing the waters into two opposite sides. The longest Italian river is the Po, which flows for 652 km (405 mi) along the Po Valley.
Rivers in Italy total about 1,200, and give rise, compared to other European countries, to a large number of marine mouths. This is due to the relative abundance of rain events in Italy, and to the presence of the Alpine chain rich in snowfields and glaciers in the northern part of the country, in the presence of the Apennines in the center-south and in the coastal extension of Italy.
Further information: Geography of Italy
|Rivers of Italy over 150 km (93 mi) in length|
|1º||Po||652 km (405 mi)||Piedmont, Lombardy, Emilia-Romagna, Veneto||Alpine|
|2º||Adige||410 km (250 mi)||Trentino-Alto Adige/Südtirol, Veneto||Alpine|
|3º||Tiber||405 km (252 mi)||Emilia-Romagna, Tuscany, Umbria, Lazio||Apennine|
|4º||Adda||313 km (194 mi)||Lombardy||Alpine|
|5º||Oglio||280 km (170 mi)||Lombardy||Alpine|
|6º||Tanaro||276 km (171 mi)||Piedmont, Liguria||Alpine|
|7º||Ticino||248 km (154 mi)||Switzerland, Piedmont, Lombardy||Alpine|
|8º||Arno||241 km (150 mi)||Tuscany||Apennine|
|9º||Piave||231 km (144 mi)||Friuli-Venezia Giulia, Veneto||Alpine|
|10º||Reno||212 km (132 mi)||Tuscany, Emilia-Romagna||Apennine|
|11º||Sarca-Mincio||203 km (126 mi)||Trentino-Alto Adige/Südtirol, Veneto, Lombardy||Alpine|
|12º||Volturno||175 km (109 mi)||Molise, Campania||Apennine|
|13º||Brenta||174 km (108 mi)||Trentino-Alto Adige/Südtirol, Veneto||Alpine|
|14º||Secchia||172 km (107 mi)||Emilia-Romagna, Lombardy||Apennine|
|15º||Tagliamento||170 km (110 mi)||Friuli-Venezia Giulia, Veneto||Alpine|
|16º||Dora Baltea||168 km (104 mi)||Aosta Valley, Piedmont||Alpine|
|17º||Ombrone||160 km (99 mi)||Tuscany||Apennine|
|18º||Chiese||160 km (99 mi)||Trentino-Alto Adige/Südtirol, Lombardy||Alpine|
|19º||Liri-Garigliano||158 km (98 mi)||Abruzzo, Lazio, Campania||Apennine|
|20º||Bormida||153 km (95 mi)||Liguria, Piedmont||Alpine|
|21º||Aterno-Pescara||152 km (94 mi)||Abruzzo||Apennine|
|22º||Tirso||152 km (94 mi)||Sardinia||Sardinian|
|Rivers of Italy above 50 m3/s (1,800 cu ft/s) of average flow at the mouth|
|№||River||Flow at the mouth||Regions crossed||Type|
|1º||Po||1,540 m3/s (54,000 cu ft/s)||Piedmont, Lombardy, Emilia-Romagna, Veneto||Alpine|
|2º||Ticino||350 m3/s (12,000 cu ft/s)||Switzerland, Piedmont, Lombardy||Alpine|
|3º||Tiber||324 m3/s (11,400 cu ft/s)||Emilia-Romagna, Tuscany, Umbria, Lazio||Apennine|
|4º||Adige||235 m3/s (8,300 cu ft/s)||Trentino-Alto Adige/Südtirol, Veneto||Alpine|
|5º||Adda||187 m3/s (6,600 cu ft/s)||Lombardy||Alpine|
|6º||Isonzo||170 m3/s (6,000 cu ft/s)||Slovenia, Friuli-Venezia Giulia||Alpine|
|7º||Nera||160 m3/s (5,700 cu ft/s)||Marche, Umbria, Lazio||Apennine|
|8º||Oglio||137 m3/s (4,800 cu ft/s)||Lombardy||Alpine|
|8º||Piave||137 m3/s (4,800 cu ft/s)||Veneto, Friuli-Venezia Giulia||Alpine|
|10º||Liri-Garigliano||120 m3/s (4,200 cu ft/s)||Abruzzo, Lazio||Apennine|
|11º||Tanaro||116 m3/s (4,100 cu ft/s)||Liguria, Piedmont||Alpine|
|12º||Arno||110 m3/s (3,900 cu ft/s)||Tuscany||Apennine|
|13º||Dora Baltea||96 m3/s (3,400 cu ft/s)||Aosta Valley, Piedmont||Alpine|
|14º||Reno||95 m3/s (3,400 cu ft/s)||Emilia-Romagna||Apennine|
|15º||Brenta||93 m3/s (3,300 cu ft/s)||Trentino-Alto Adige/Südtirol, Veneto||Alpine|
|16º||Livenza||85 m3/s (3,000 cu ft/s)||Friuli-Venezia Giulia, Veneto||Alpine|
|17º||Volturno||83 m3/s (2,900 cu ft/s)||Molise, Campania||Apennine|
|18º||Isarco||78 m3/s (2,800 cu ft/s)||Trentino-Alto Adige/Südtirol||Alpine|
|19º||Sesia||70 m3/s (2,500 cu ft/s)||Piedmont||Alpine|
|20º||Tagliamento||70 m3/s (2,500 cu ft/s)||Friuli-Venezia Giulia||Alpine|
|21º||Toce||70 m3/s (2,500 cu ft/s)||Piedmont||Alpine|
|22º||Sele||69 m3/s (2,400 cu ft/s)||Campania||Apennine|
|23º||Mincio||60 m3/s (2,100 cu ft/s)||Veneto, Lombardy||Alpine|
|24º||Velino||60 m3/s (2,100 cu ft/s)||Lazio, Umbria||Apennine|
|25º||Rienza||60 m3/s (2,100 cu ft/s)||Trentino-Alto Adige/Südtirol||Alpine|
|26º||Aterno-Pescara||57 m3/s (2,000 cu ft/s)||Abruzzo||Apennine|
|27º||Sile||55 m3/s (1,900 cu ft/s)||Veneto||Alpine|
For the purposes of this list, the Italian rivers draining into the Adriatic Sea begin at the coastal border between Italy and Slovenia and follow the Adriatic coast of Italy until it reaches Santa Maria di Leuca. Beyond this point, rivers empty into the Ionian Sea rather than the Adriatic. The rivers are ordered according to how far along the coast the river mouth is from the Italian/Slovenian border, the first river having its mouth the closest to the border and the last being closest to Santa Maria di Leuca.
The tributaries of the Po are organized into right- and left-hand tributaries. The lists are ordered from the river closest to the source of the Po to the river closest to the mouth of the Po.
For the purposes of this list, the Italian rivers draining into the Ionian Sea begin at Santa Maria di Leuca in the east and extend to the Strait of Messina in the west. Sicilian rivers are excluded because they are listed in their own section below. The rivers are ordered according to how far east their mouth is, the first river having the easternmost mouth and the last having the westernmost mouth.
For the purposes of this list, the Italian rivers draining into the Tyrrhenian Sea begin at the Strait of Messina in the south and extend north up to San Pietro Point near Portovenere. Sicilian and Sardinian rivers are excluded from this list because those rivers are in their own sections below. The rivers are ordered according to how far south their mouth is, the first river having the southernmost mouth and the last having the northernmost mouth.
For the purposes of this list, the Italian rivers draining into the Ligurian Sea begin at San Pietro Point near Portovenere in the east and extend to the border with France near Monaco. Sardinian rivers are excluded from this list because those rivers are in their own section below. The rivers are ordered according to how close their mouth is to San Pietro Point. The river with its mouth closest to this geographic point is listed first and rivers further away from this point are listed in the order in which their mouth empties into the sea as one proceeds along the coast up to the border with France.