Major General Arthur Samuel "Tubby" Allen CB, CBE, DSO, VD (10 March 1894 – 25 January 1959) was an Australian soldier. During World War II he reached the rank of major general and commanded Allied forces in the Syria-Lebanon and New Guinea campaigns. Allen was frequently referred to during World War II by the nickname "Tubby"; an indication of his stocky build and the affection with which he was regarded by both soldiers and the Australian public.