Pro C (Korean: 프로씨) is a sub-unit of the South Korean group MADTOWN, consisting of members Moos and Buffy. Pro C stands for "Problem Children." They debuted as a unit in 2013.

At the time of their debut, their label, J.Tune Camp, commented, "Pro C is beginning of the birth of a new boy group that is preparing for debut in the first half of 2014. They will be showcasing their bad boy charms like their unit name Problem Children." That new boy group debuted later than anticipated in October of 2014 as MADTOWN.

Pro C kicked off their debut on November 27, 2013 with "나쁜기억" featuring K.Will. The duo later released a second single on February 5, 2014 titled, "더 사랑하는 쪽이 아프다" featuring 에일리. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.