During routine dissection for Ist MBBS students on 65 years donated embalmed male cadaver in the Department of Anatomy, K.J.Somaiya Medical College, we observed the multiple heads of the deltoid muscle in the left arm. The posterior fibers of the left deltoid muscle were enclosed in a distinct fascial sheet and the deltoid muscle was seen to arise from the middle 1/3 of the vertebral border of the scapula. However there was no variation in the blood supply and the nerve supply of the deltoid muscle. The photographs were taken for proper documentation. The existence of the multiple heads of the deltoid muscle should be kept in mind by surgeons operating on deltoid, posterior deltoid, or doing scapular flaps.