Victor Albert Sinclair (18 May 1872[1] –17 March 1944[2]) was a lawyer and political figure in Ontario.

He represented Oxford South in the Legislative Assembly of Ontario from 1914 to 1919 as a Conservative member.

He was born in Tillsonburg, the son of Dr. Lachlin C. Sinclair and Roxiliana Norman, and was educated in Tillsonburg, at the University of Toronto and Osgoode Hall.

Sinclair served as president of the Tilsonburg Horticultural Club.

[1] He later served as chairman of the Worker's Compensation Board of Ontario[3] from 1925 to 1934 when he was removed from office by Mitchell Hepburn.