WATERPROOF CONNECTOR

It is aimed to prevent the damage of a rubber plug. A connector housing (20) is formed with first and second cavities (23), (32) communicating with wire insertion holes (42) of a rubber plug (40) at opposite sides of the wire insertion holes (42) in an extending direction of the wire insertion holes. Terminal fittings (60) are inserted into the first cavities (23) from the second cavities (32) through the wire insertion holes (42). Each terminal fitting (60) is formed with first and second projections (66), (67) spaced apart in the extending direction of the wire insertion holes (42). A distance between projecting ends of the first and second projections (66), (67) is set to be longer than an extension length of the wire insertion holes (42). At least one of the first and second projections (66), (67) is constantly arranged to be able to come into contact with the inner peripheral surface of either one of the first and second cavities (23), (32) in a state where the terminal fitting (60) is inserted in the wire insertion hole (42) while passing through the wire insertion hole (42).