To suppress vibration of a female terminal fitting in the inserting and removing direction thereof in a female side housing.

This female terminal fitting 20 received from the rear in a female side housing 40 and connected to a male terminal fitting 61 in a conductible manner includes a female side connection part 21 to the inside of which the male side connection part 62 of the male terminal fitting 61 is inserted toward the rear from the front thereof, an elastic contact piece 27 provided in the female side connection part 21 in an elastically deformable manner, a part to be locked 29A which is locked from the rear to a terminal locking part 44 formed in the female side housing 40, and an abutting part 32 provided in the female side connection part 21 while abutting a receiving part 46 provided in the female side housing 40 from the rear.