The present invention provides a stabilizer for a hunting stand, which is suitable for use with a ladder stand or a freestanding hunting stand. The stabilizer incorporates two upright members, longitudinal rungs, and a female threaded member joined to the base section of each upright. The stabilizer levels the stand by the use of threaded rods that are inserted into the upright members and are rotatable in the female threaded member. Support plates are hinged at the base of each threaded rod. Typically the stabilizer includes a connector atop each upright, such as connection tubes or swaged connection sections. A stabilizer for and freestanding hunting stand incorporates a first upright member with a connector such as a connection tube or a swaged section at an upper end of the upright member with a nut at the lower end. A threaded rod is rotatable in the nut and is connected to a support plate. Ladder stands incorporating the stabilizer are also disclosed. The stabilizer improves safety stability are to reduce injuries from falling from an unstable stand and when propping up the stands.