| San Giovanni in Marignano | |
| Official Name: | Comune di San Giovanni in Marignano |
| Coordinates: | 43.9333°N 55°W |
| Region: | Emilia-Romagna |
| Province: | Rimini (RN) |
| Frazioni: | Santa Maria in Pietrafitta, Montalbano, Pianventena |
| Mayor: | Michela Bertuccioli |
| Area Total Km2: | 21.37 |
| Population Footnotes: | [1] |
| Population Total: | 9453 |
| Population As Of: | 31 October 2020 |
| Population Demonym: | Marignanesi |
| Elevation M: | 30 |
| Saint: | St. Lucy |
| Day: | December 13 |
| Postal Code: | 47842 |
| Area Code: | 0541 |
San Giovanni in Marignano (San Giàn or San Zvan in Marignèn) is a comune (municipality) in the Province of Rimini in the Italian region Emilia-Romagna, located about 130km (80miles) southeast of Bologna and about 20km (10miles) southeast of Rimini. As of 2021, the municipality counts 9,463 inhabitants.[2]
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").[3] Cattolica Airfield is an abandoned World War II US Air Force airfield in its vicinity.
Under the Kingdom of Italy, on 5 December 1895, Cattolica gained municipal autonomy from San Giovanni.
In 1951, 54% of San Giovanni's population was employed in agriculture, falling to 23% by 1971.