The Marecchia (pronounced [maˈrekkja]) is a river in eastern Italy, flowing from near Monte dei Frati in the province of Arezzo, Tuscany, to the Adriatic Sea in Rimini, Emilia-Romagna.

[1] The source of the river is near Monte dei Frati, east of Pieve Santo Stefano and southwest of Badia Tedalda in the province of Arezzo, Tuscany.

It passes through an exclave of Badia Tedalda, surrounded by the province of Rimini, and the comune of Santarcangelo di Romagna.

[4] While on his way to fight the Gothic army, the Byzantine general Narses crossed the Marecchia on a pontoon after the leader of the Goths contesting his passage of the river was killed in a skirmish.

[7] On 8 April 1944, as part of the Fragheto massacre, seven partisans and a civilian were shot by members of the Venezia-Giulia Battalion of the National Republican Guard at the confluence of the Senatello stream with the Marecchia.