Justin Fontaine (born October 18, 1997) is an American former professional stock car racing driver.

[3] In 2016, Fontaine made his Camping World Truck Series debut at Martinsville Speedway, driving the No.

Due to damage to the SAFER barrier caused by Fontaine's hit, as well as the looming threat of rain that ended up postponing the Advance Auto Parts Clash to Sunday, the race was called at lap 75, with Austin Theriault the winner.

[11][12] In his first race in the 45, Fontaine scored his first top ten in the Truck Series, finishing tenth.

On September 17, 2018, Fontaine announced that after the conclusion of the 2018 NASCAR Camping World Truck Series Season at Homestead–Miami Speedway he would step away from racing indefinitely.

[15] After ending his racing career, Fontaine interned for North Carolina Representative Patrick McHenry in 2019, and was promoted to deputy campaign manager for the following year's election cycle.

* Season still in progress 1 Ineligible for series points (key) (Bold – Pole position awarded by qualifying time.