Billy Barr

William Barr (an haife shi a shekara ta 1950) lauya ne kuma jami'in gwamnati na Amurka.

William Barr kuma yana iya nufin:

 William G. Barr (1920-1987), wakilin jihar Illinois kuma ɗan kasuwa
 William Barr (masanin tarihi)  (an haife shi a shekara ta 1940), masanin tarihin Scotland a Jami'ar Calgary, Kanada
 William Barr (mai zane)  (1867-1933), mai zane na Scotland / California
 Billy Barr (ɗan wasan ƙwallon ƙafa) (an haife shi a shekara ta 1969), ɗan wasan ƙwallafen Ingila kuma kocin
 Billy Barr (naturalist), masanin kimiyya na Amurka, wanda aka sani da tattara bayanan canjin yanayi