Hacinas is a municipality located in the province of Burgos, Castile and León, Spain. The municipality had a population of 189 inhabitants at the 2004 INE census, and 145 in 2025-01-01.

One of the fossilized trees of Hacinas

41°59′N 3°17′W/41.983°N 3.283°W/ 41.983; -3.283