Jung Joon-young (Korean: 정준영; born February 21, 1989) is a South Korean former musician. He was convicted in 2019 for gang-raping two different victims on two occasions in 2016.

Jung first gained recognition in the 2012 season of the musical reality competition television show Superstar K, where he finished in third place. In October 2013 he released his debut mini album, 1st Mini Album, which won him the "New Male Solo Artist" award at the 3rd Gaon Chart Music Awards. On June 26, 2014, he released his self-produced 2nd mini album, Teenager. On February 7, 2017, he released his studio album The First Person. From 2015 to March 2019, Jung was the lead vocalist of the rock band JJY Band, which was renamed Drug Restaurant in 2016.

In 2013, he joined the KBS2 variety show 2 Days & 1 Night as its youngest member and would be a cast member on the show until 2019. He hosted his own radio program titled Jung Joon-young's Simsimtapa on MBC FM from 2014 to 2015 and made his film debut in Love Forecast in 2015.

In March 2019, developments in the Burning Sun scandal led to the public reveal of Jung Joon-young KakaoTalk chatrooms. Subsequently, Jung retired from the entertainment industry, admitting that he had "filmed women without their consent and shared it". On November 29, 2019, Jung was sentenced to six years in prison for the rape of multiple drunk unconscious women and for non-consensually filming and sharing sexual images of his victims. In May 2020, the sentence was reduced to five years by the Seoul High Court.