San Giovanni in Marignano (Romagnol: San Giàn or San Zvan in Marignèn) is a comune (municipality) in the Province of Rimini in the Italian region Emilia-Romagna, located about 130 kilometres (81 mi) southeast of Bologna and about 20 kilometres (12 mi) southeast of Rimini.

[3] San Giovanni in Marignano borders the following municipalities: Cattolica, Gradara, Misano Adriatico, Morciano di Romagna, Saludecio, San Clemente, Tavullia.

It is one of I Borghi più belli d'Italia ("The most beautiful villages of Italy").

Under the Kingdom of Italy, on 5 December 1895, Cattolica gained municipal autonomy from San Giovanni.

[3] In 1951, 54% of San Giovanni's population was employed in agriculture, falling to 23% by 1971.