A decoy tethering device for deploying and retrieving a decoy assembly includes a housing. A line is selectively extensible from and retractable into the housing. A fastener is selectively couplable to the line. A coupler that is coupled to the housing is configured to couple to a keel of a decoy. A connector that is coupled to a second end of the line is configured to couple to a weight. The fastener is positioned to decouple from the line to both extend and retract the line from the housing, and to couple to the line to retain the line in an extended configuration. The coupler is configured to couple the housing to the keel of the decoy. The connector is configured to couple to the weight to position the weight to retain the decoy in place on a surface of a body of water in which the weight is positioned.