A male terminal fitting is provided with a base wall extending in a front-rear direction, and a plate-like tab portion extending forward from a front end part of the base wall. The tab portion includes a first wall portion extending forward from the front end part of the base wall, a second wall portion facing the first wall portion, a coupling wall portion coupling side edges on one side, out of both left and right sides, of the first and second wall portions, and a contact wall portion extending from a side edge on the other side, out of the both left and right sides, of the first wall portion toward the second wall portion and abutting on the second wall portion.