Abstract: Described is a post support stand that can be used to temporarily support a fence post or similar object in a vertical, upright orientation during installation. The support stand includes a bracket having a central opening in which a post can be positioned. A plurality of clamps is disposed on the bracket and can be adjusted so that the clamps engage the post. The bracket may include a pivoting gate thereon to facilitate insertion of a post into the central opening of the bracket. A plurality of legs extends downward and outward from the bracket at an angle so as to provide a wide and stable base. The legs are preferably telescopic so that they can be adjusted in length, and the legs are connected to one another by crossbars. Once a post is secured within the ground, the support stand can be removed therefrom.