Belgium competed at the 2018 Winter Olympics in Pyeongchang, South Korea, from 9 to 25 February 2018, with 22 competitors in 9 sports.

Belgium qualified two male and two female alpine skiers, Kai Alaerts, Marjolein Decroix, Sam Maes and Kim Vanreusel.

[2] * – Denotes the driver of each sled Belgium qualified one male skier, Thierry Langer, signifying the nation's Olympic debut in the sport.

[8] Belgium qualified three male snowboarders, Sebbe De Buck, Seppe Smits and Stef Vandeweyer.

[7] Belgium later earned an additional quota for Mathias Vosté after the approval of the Olympic Athletes from Russia team allowed for reallocations.