A trailer hitch is disclosed, which is configured to be provided at a rear part of a vehicle. The trailer hitch of the invention includes a pair of hitch side members. Each of the hitch side members including a mounting part and a cross member installation part. The mounting part is configured to be connected to a support portion of a rear side member of the vehicle, and the cross member installation part is configured to protrude from a rear end of the rear side member. The trailer hitch further includes a cross member and a hitch ball support member. The cross member extends in a widthwise direction of the vehicle, and having ends connected to the cross member installation part, and the hitch ball support member has a hitch ball. The upper end of the hitch ball support member is provided on the cross member so as to suspend therefrom.