An adjustable lumbar support mechanism and motion upholstery furniture having the same are provided. The adjustable lumbar support mechanism includes a lumbar support member that is coupled to a lumbar support link. The lumbar support link is coupled to a lumbar support mounting plate. An actuating mechanism is coupled to the lumbar support link such that when an extendable shaft of the actuating mechanism shifts from a retracted to an extended configuration, the lumbar support member rotates away from a back portion of a seat back and towards the seat to provide lumbar support to an occupant sitting in the furniture.