Sir Horace Archambeault (March 6, 1857 – August 25, 1918) was a Canadian politician, judge, and a faculty member in Quebec.

He was born in L'Assomption, Canada East, and studied classics and law.

In 1881 he became a professor at Université Laval, eventually becoming the dean of the university's law school.

He was appointed a judge for the Quebec Court of King's Bench in 1908 and became its chief justice in 1911.

[1] Louis Archambeault retired from the Legislative Council of Quebec as representative of Repentigny in 1888 and Horace was invited to replace him.

He was originally considered a National Conservative but switched his political allegiance to become a Liberal.

[1] Archambeault married Élizabeth Lelièvre in Quebec City at Cathedral-Basilica of Notre-Dame de Québec in 1882.