Soohorang's name is derived from the Korean words for 'protection' (Sooho) and 'tiger' (ho-rang-i).
The white tiger is considered a sacred guardian animal in South Korea, with some locals considering the Korean peninsula to be tiger-shaped.
The 1988 Seoul Olympics also featured a tiger mascot.
Paralympic Games mascot "Bandabi" represents courage and strong willpower, organisers said.
The Pyeongchang 2018 Olympic Winter Games will be held from Feb. 9-25.
(Reporting by Minwoo Park. Editing by Patrick Johnston)