Bač

Bač may refer to:

Places
In Montenegro:
 * Bač, Montenegro, in the northeastern part of the country

In North Macedonia:
 * Bač, North Macedonia, a village and former municipality

In Serbia:
 * Bač, Serbia, a town and municipality in the South Bačka District
 * Bač Fortress, a fortress

In Slovakia:
 * Báč, a village

In Slovenia:
 * Bač, Ilirska Bistrica, a village in the Municipality of Ilirska Bistrica
 * Bač pri Materiji, a settlement in the Municipality of Hrpelje–Kozina

Names

 * Bač (name), a Slavic name