ONEUS (원어스) is a South-Korean boyband under RBW Entertainment, also known as a home to their brother group ONEWE and one of its most popular acts, MAMAMOO. It consists of five members in total: Seoho, Leedo, Keonhee, Hwanwoong and Xion. Former member RAVN left the group in October 2022.

The group made their debut in early January 2019 with “Valkyrie” off of their first mini-album LIGHT US.