The present general inventive concept provides an adjustable accessory bracket assembly having an adjustment mechanism to adjust one or more axes of rotation of a bracket assembly in order to adjustably position accessory devices, such as a bracket for a mirror or other accessory device. The adjustable accessory bracket assembly can include a handle member, a push rod assembly, and a mounting member such that the handle member pivots with respect to the mounting member. In some embodiments, adjustment of a single rotation axis is provided; other embodiments may be configured to simultaneously adjust multiple axes of freedom for multi-position bracket assemblies.