Kalotina (Bulgarian: Калотина) is a village in Dragoman Municipality, Sofia Province, in westernmost central Bulgaria. As of 2010 it has 270 inhabitants and the mayor is Lidia Bozhilova. The village is located at the border with Serbia, 55 km to the northwest of the capital Sofia, on the main highway and railway between Western Europe and Asia. Kalotina lies at (42°59′N22°52′E), 282 metres above sea level. Kalotina is known for the Kalotina-Gradinje border checkpoint, one of Bulgaria's busiest and best-known due to the proximity to Sofia.