Justin Snith (born December 8, 1991, in Calgary, Alberta) is a Canadian luger who has competed since 2008.

Snith qualified for the 2010 Winter Olympics with Tristan Walker, where they finished 15th.

He competed in both the doubles race and the team relay (which made its Olympic debut in 2014).

They joined Alex Gough and Samuel Edney and had another fourth-place finish in the mixed team relay.

Snith, Gough, Edney and Walker again won silver in the mixed team relay at the 2018 Winter Olympics, at the Alpensia Sliding Centre near Pyeongchang, South Korea.