An in-mold label dispenser (10) for supplying labels to a plastic blow molding machine (12) is disclosed as having a dispensing head (36) on which a first locator (40) is mounted so as to be movable from a withdrawn position at one side of the mold (14) to an inserted position between open mold sections (16) and into engagement with a second locator (42) mounted at the other side of the mold (14). The engagement of the first and second locators (40, 42) from opposite sides of the mold (14) provides accurate location of the dispensing head (36) during movement from a mold aligned position to a label transfer position to provide transferring of the labels (34) to the mold (14) from one or more label magazines (30). First and second supports (48, 50) on which the locators (40, 42) are mounted are moved by first and second actuators (52, 54) to provide the movement between the mold aligned and label transfer positions.