Tursa Çerfia is an Umbrian goddess of fear and rout, one of the Çerfian deities of Çerfus Martius. Her name comes from a root meaning 'to frighten, put to flight', echoed in her cult-verb tursitu 'let her rout', and she functions as a deity of the city's boundary: in the Iguvine ritual she appears as a paired figure with Tursa Iovia, the former invoked outside the augural limit (pomerium) and the latter within it, recalling the Roman boundary-god Terminus. Together with Prestota Çerfia she is summoned in the great imprecation that the enemies of Iguvium be seized with terror and driven in flight. She receives heifer-calves in sacrifice.