Secret (Korean: 시크릿) is a South Korean girl group under RBW. The group is currently composed of three members: Jun Hyoseong, Zinger and Yebin.

The group was originally formed by TS Entertainment in 2009, with four members: Jun Hyoseong, Jung Hana, Song Jieun and Han Sunhwa. They released their debut single “I Want You Back ” in October 2009. They released their final extended play, SECRET SUMMER, as a four-piece ensemble in August 2014 and would remain inactive for 12 years.