Abstract: The improved hydraulically operated post pulling apparatus is adapted to be mounted on a vehicle such as a skid steer mover. The post puller apparatus includes a support frame adapted to be mounted on the vehicle. The support frame includes a number of base member brackets that attach a base member or base plate to the support frame. The base member includes a post receiving recess that is adapted to receive a post from the side rather than the top. The post pulling apparatus also includes a top support plate that includes a post receiving indent, which also is adapted to receive a post from the side rather than the top. A rotating jaw member having a member of post-engaging teeth is pivotally mounted next to the post receiving indent on the top support plate. Opposite the rotating jaw member, a fixed jaw member is attached to the top support plate that includes a number of post-engaging faces.