Oh Jong-hyuk is a South Korean singer and member of South Korean boy band Click-B.

Click-B (Korean: 클릭비) is a South Korean boy group and band formed in August 1999 under DSP Media. Click-B started out as a band combining rock and dance beats in their music. They became a four member group in 2002, with several member changes over the next few years. In 2015, the group made a seven member comeback with the single album Reborn.