A Barbanza is a comarca in the province of A Coruña, Galicia, Spain. Its capital is the municipality of Ribeira. The comarca contains four municipalities and 66,095 inhabitants (2019) in an area of 244.2 km2 (94.3 sq mi). These municipalities are:

42°36′50″N 8°54′24″W/42.61389°N 8.90667°W/ 42.61389; -8.90667