Abstract: A cord retainer assembly constructed of two cooperating parts: a cord holder part and a cord lock part. The cord holder part is molded as a one-piece plastic elongate housing having a tapered nose portion with two spaced apart apertures formed at one end and having a central opening formed at the other end. The cord lock part is formed of a one-piece plastic elongate slider member which is conformably shaped to be slidably disposed within the hollow housing and has a handle portion which extends outwardly of its central opening. The slider member is formed with a pair of laterally extending gripping teeth for selectively restraining a length of cord which is threaded through the housing. The slider member is releasably latched within the housing member by a ratcheting mechanism composed of a plurality of serrated teeth formed longitudinally along an inside surface of the housing which mate with a second plurality of serrated teeth formed longitudinally along the slider member.