A connector includes a housing including a terminal accommodation chamber, a terminal fitting including a locking hole and to be inserted into the terminal accommodation chamber from behind the housing, and a locking lance for retaining the terminal fitting inserted into the terminal accommodation chamber. The locking lance is cantilevered forward and includes a body portion resiliently displaceable in a direction intersecting an insertion direction of the terminal fitting and a projection projecting from the body portion toward the terminal fitting and configured to enter the locking hole when the terminal fitting is inserted into the terminal accommodation chamber. A width of the projection is smaller than that of the locking hole. A maximum width of the body portion is larger than the width of the projection. A part of the body portion connected to the projection is formed with a guiding portion gradually reduced in width toward the projection.