Théotime Blanchard (May 8, 1844 – March 11, 1911) was a teacher, farmer, merchant and politician in the Province of New Brunswick, Canada.

A Roman Catholic, in the New Brunswick Legislative Assembly he helped lead the opposition to the Common Schools Act of 1871 that banned religious instruction in the province's school system based on the principle of Separation of church and state.

Blanchard resigned his seat in the assembly and was appointed inspector of weights and measures for Restigouche County in 1876.

Blanchard was the first Acadian elected to the provincial assembly and the Canadian House of Commons from Gloucester County.

He died in Bathurst at the age of 66 after being injured in a vehicle accident.