Čepin (Hungarian: Csepin; German: Tschepin; Serbian Cyrillic: Чепин) is a village and a municipality in Osijek-Baranja County, Croatia. It is located in northeast Slavonia, 10 kilometers southwest of Osijek.

Čepin, with its 14,830 inhabitants at the 2018 census, is now included in Osijek built-up area. The majority of the population is Croat at 93.8%. Minorities include Serbs and Hungarians.

There is also an airport, used exclusively for sport and private flying purposes (Sport AirPort and private fly)

In the late 19th and early 20th century, Čepin was part of the Virovitica County of the Kingdom of Croatia-Slavonia.

According to the 2011 census, the Municipality of Čepin had 11,599 inhabitants, making it the third largest municipality in Croatia and largest in Slavonia by population. The village of Čepin itself, with 9,500 inhabitants, is the largest settlement in Croatia which doesn't have a town status (excluding Sesvete), hence sometimes being called the "biggest village in Croatia".

In 2011, the following villages comprised the Čepin municipality:

The village of Ovčara, which had a population of 1,066 in the 2001 census, was abolished and merged with the settlement of Čepin in 2005.

The villages of Čepinski Martinci, Čokadinci, and Livana were established as a colonist settlement during the land reform in interwar Yugoslavia.