Namesakes
Upton Sinclair
(m) 1878-1968 
Notable Writers
Pulitzer Award Winners 1943 Dragon's Teeth
Vin Diesel
(a.k.a. Sinclair) (m) 1967-
Notable Actors and Entertainers (actor)
John Sinclair
(m)
Fictional Characters from Song Titles 1972 John Sinclair
Floyd Mayweather Jr.
(a.k.a. Sinclair) (m) 1977-
Notable Athletes (boxing)
Olympic Medalists 1996 boxing (bronze)
Christine Sinclair
(f) 1983-
Olympic Medalists 2012 football (bronze)
Jaz Sinclair
(f) 1994-
Notable Actors and Entertainers (actor)