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List of rivers of Italy

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Location of some among the main Italian rivers

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 river originating in Italy is the Drava, which flows for 724 km (450 mi), while the river flowing the most kilometers in Italy is the 652 km (405 mi) long Po.

Rivers in Italy total about 1,200,[1] 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.

Characteristics of Italian rivers

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Further information: Geography of Italy
Flamingos in the delta of the Po river
  • The widest and largest rivers belong to the Alpine region due to the arrangement and elevation of the relief, as well as the depth of the Po Valley.
  • Along the peninsula, given the arrangement of the Apennine chain and the different slopes of the two sides, the rivers on the Adriatic and Ionian sides run through short transversal valleys and, except for the Reno, do not exceed 200 km (120 mi) in length, while ten are just over 100 km (62 mi). On the Tyrrhenian side instead, they are on average longer because the Apennine spurs and the sub-Apennine belt are wider.
  • The rivers that flow into the Tyrrhenian sea are longer also because for the first stretch, they follow longitudinal valleys (Apennine valleys) and then run transversally with respect to the axis of the chain, in the south-Apennine area.
  • Given the location of the springs and the local rainfall regime, the rivers of Italy are divided into:
    • Alpine rivers, of glacial origin, subject to flooding in spring and summer because when it is hot the glaciers melt. The lakes that frequently occupy the most depressed parts of the Alpine valleys serve to dampen the rush of the rivers and to clarify their murky waters. In fact, given the rapidity of the valleys from which the rivers descend, the speed of their waters is remarkable and their activity of erosion and transport of rocky debris is sensitive. Decanting is precisely the process by which this material is abandoned in the lakes of which these rivers are tributaries.
    • Apennine rivers, subject to sudden spring and autumn floods due to the rains. The lean period is in summer accentuated in the Northern Apennines, almost absolute in the southern one, except for some waterways (Aterno-Pescara, Sele, Volturno, Liri-Garigliano, to be limited to those that flow directly into the sea, to which are added Velino, Nera, Aniene all in the Tiber basin [Wikidata], etc.) which are fed by large karst springs that spring on the edge of areas characterized by permeable fissured rocks. In fact, there are no snowfields and glaciers on the Apennines (the only glacier, albeit small, is that of the Calderone, on the northern side of Corno Grande, in the Gran Sasso d'Italia massif, in Abruzzo); rainwater does not always collect in river beds made up of impermeable ground, that is, such as to allow a fair average annual flow.
    • The Sardinian and Sicilian rivers are torrential (full of water in winter and almost dry in summer), with the exception of Tirso, Flumendosa, Coghinas and Simeto.

List of rivers in Italy over 150 km (93 mi)

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Rivers of Italy over 150 km (93 mi) in length
№RiverLengthRegions crossedType
1ºPo652 km (405 mi)Piedmont, Lombardy, Emilia-Romagna, VenetoAlpine
2ºAdige410 km (250 mi)Trentino-Alto Adige/Südtirol, VenetoAlpine
3ºTiber405 km (252 mi)Emilia-Romagna, Tuscany, Umbria, LazioApennine
4ºAdda313 km (194 mi)LombardyAlpine
5ºOglio280 km (170 mi)LombardyAlpine
6ºTanaro276 km (171 mi)Piedmont, LiguriaAlpine
7ºTicino248 km (154 mi)Switzerland, Piedmont, LombardyAlpine
8ºArno241 km (150 mi)TuscanyApennine
9ºPiave231 km (144 mi)Friuli-Venezia Giulia, VenetoAlpine
10ºReno212 km (132 mi)Tuscany, Emilia-RomagnaApennine
11ºSarca-Mincio203 km (126 mi)Trentino-Alto Adige/Südtirol, Veneto, LombardyAlpine
12ºVolturno175 km (109 mi)Molise, CampaniaApennine
13ºBrenta174 km (108 mi)Trentino-Alto Adige/Südtirol, VenetoAlpine
14ºSecchia172 km (107 mi)Emilia-Romagna, LombardyApennine
15ºTagliamento170 km (110 mi)Friuli-Venezia Giulia, VenetoAlpine
16ºDora Baltea168 km (104 mi)Aosta Valley, PiedmontAlpine
17ºOmbrone160 km (99 mi)TuscanyApennine
18ºChiese160 km (99 mi)Trentino-Alto Adige/Südtirol, LombardyAlpine
19ºLiri-Garigliano158 km (98 mi)Abruzzo, Lazio, CampaniaApennine
20ºBormida153 km (95 mi)Liguria, PiedmontAlpine
21ºAterno-Pescara152 km (94 mi)AbruzzoApennine
22ºTirso152 km (94 mi)SardiniaSardinian

List of Italian rivers above 50 m3/s (1,800 cu ft/s)

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Rivers of Italy above 50 m3/s (1,800 cu ft/s) of average flow at the mouth
№RiverFlow at the mouthRegions crossedType
1ºPo1,540 m3/s (54,000 cu ft/s)Piedmont, Lombardy, Emilia-Romagna, VenetoAlpine
2ºTicino350 m3/s (12,000 cu ft/s)Switzerland, Piedmont, LombardyAlpine
3ºTiber324 m3/s (11,400 cu ft/s)Emilia-Romagna, Tuscany, Umbria, LazioApennine
4ºAdige235 m3/s (8,300 cu ft/s)Trentino-Alto Adige/Südtirol, VenetoAlpine
5ºAdda187 m3/s (6,600 cu ft/s)LombardyAlpine
6ºIsonzo170 m3/s (6,000 cu ft/s)Slovenia, Friuli-Venezia GiuliaAlpine
7ºNera160 m3/s (5,700 cu ft/s)Marche, Umbria, LazioApennine
8ºOglio137 m3/s (4,800 cu ft/s)LombardyAlpine
8ºPiave137 m3/s (4,800 cu ft/s)Veneto, Friuli-Venezia GiuliaAlpine
10ºLiri-Garigliano120 m3/s (4,200 cu ft/s)Abruzzo, LazioApennine
11ºTanaro116 m3/s (4,100 cu ft/s)Liguria, PiedmontAlpine
12ºArno110 m3/s (3,900 cu ft/s)TuscanyApennine
13ºDora Baltea96 m3/s (3,400 cu ft/s)Aosta Valley, PiedmontAlpine
14ºReno95 m3/s (3,400 cu ft/s)Emilia-RomagnaApennine
15ºBrenta93 m3/s (3,300 cu ft/s)Trentino-Alto Adige/Südtirol, VenetoAlpine
16ºLivenza85 m3/s (3,000 cu ft/s)Friuli-Venezia Giulia, VenetoAlpine
17ºVolturno83 m3/s (2,900 cu ft/s)Molise, CampaniaApennine
18ºIsarco78 m3/s (2,800 cu ft/s)Trentino-Alto Adige/SüdtirolAlpine
19ºSesia70 m3/s (2,500 cu ft/s)PiedmontAlpine
20ºTagliamento70 m3/s (2,500 cu ft/s)Friuli-Venezia GiuliaAlpine
21ºToce70 m3/s (2,500 cu ft/s)PiedmontAlpine
22ºSele69 m3/s (2,400 cu ft/s)CampaniaApennine
23ºMincio60 m3/s (2,100 cu ft/s)Veneto, LombardyAlpine
24ºVelino60 m3/s (2,100 cu ft/s)Lazio, UmbriaApennine
25ºRienza60 m3/s (2,100 cu ft/s)Trentino-Alto Adige/SüdtirolAlpine
26ºAterno-Pescara57 m3/s (2,000 cu ft/s)AbruzzoApennine
27ºSile55 m3/s (1,900 cu ft/s)VenetoAlpine

Draining into the North Sea

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  • Reno di Lei

    From the artificial Lago di Lei (the barrage itself is part of Switzerland), the Reno di Lei runs for a few kilometers through northern Italy before entering Switzerland again, and drains via the Reno di Avers and the Hinterrhein into the Rhine.

Draining into the Black Sea

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Acqua Granda (or Spöl)
  • Drava (a short section in Italy, continues into Austria, Slovenia, Croatia and Hungary)

    The Drava drains into the Danube on the Croatia–Serbia border.

    • Slizza (three-quarters in Italy, a quarter in Austria)

      After entering Austria, the Slizza drains via the Gail into the Drava.

  • Acqua Granda (half in Italy, half in Switzerland)

    After entering Switzerland, the Spöl drains into the Inn, which meets the Danube in Germany.

Draining into the Adriatic Sea

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The Reno near Casalecchio

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.

Tributaries of the Adige

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The Adige crossing Verona.

Tributaries of the Po

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The Po in Boretto (RE).

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.

Right-hand tributaries

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Left-hand tributaries

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Rivers draining into Lake Maggiore

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The Ticino and the Ponte Coperto of Pavia

Rivers draining into Lake Como

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The Adda in Imbersago

Draining into the Ionian Sea

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The Stilaro near Bivongi

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.

Draining into the Tyrrhenian Sea

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The Garigliano near its 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.

Tributaries of the Tiber

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The Tiber: ponte Sant'Angelo (Rome)

Draining into the Ligurian Sea

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The Polcevera in Bolzaneto (Genova)

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.

Rivers of Sicily

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River Simeto

Rivers of Sardinia

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The Temo in Bosa

Alphabetical list

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Notes

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  1. ^ "Lista Fiumi in Italia" (in Italian). Retrieved 23 February 2022.
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