Kärrbäck is a village in Haparanda Municipality, in Norrbotten County, Sweden. Kärrbäck lies at 44 m above sea level. The nearest city is Luleå, 86 km to the west. Among the landmarks around are Karl Gustavs kyrka, Norrbotten (14.1 km), Karunki Church (16.0 km) and Hietaniemi Church (19.3 km).