The Biceps brachii muscle is known to show variations in the number of heads. Various types of variations have been associated with the proximal attachment of Biceps brachii muscle .The Biceps brachii muscle is one of the muscle of anterior compartment of arm. It has two heads, short head and long head. This is a case report on supernumerary and vari-ant head of proximal part Biceps brachii muscle in male adult cadaver. This third head of Biceps brachii was noted unilaterally. These finding were compared with other documented reports.