Produce X 101 (프로듀스 X 101) was a 2019 boy group survival show on Mnet. The fourth season of the Produce 101 series, it is a large-scale project in which the public "produces" a temporary boy group by choosing members from a pool of 101 contestants.
The show premiered on May 3, 2019 and aired every Friday at 23:00 (11:00 p.m.) KST.
In November 2018, Mnet confirmed that Produce 101 was in discussion for a new season but did not confirm broadcast timing and details.
- The final eleven officially debuted in the group called X1 on August 27, 2019.
- Lee Jin Woo (22nd), Lee Woo Jin (41st) and Lee Tae Seung (53rd) debuted in the unit group TEEN TEEN on September 18, 2019.
- Kim Si Hun (27th), Yun Jung Hwan (38th) and Hong Seong Jun (51st) debuted in the unit group BDC on October 29, 2019.
- Lee Jin Hyuk (12th) debuted as a soloist on November 4, 2019.
- Park Yu Ri (36th) and Jung Baek Jin (38th) debuted as the duo JxR on December 5, 2019.
- Oh Sae Bom (69th) debuted as a soloist on December 17, 2019.
- Song Yu Vin (15th) and Kim Kook Heon (21st) debuted as a duo called B.O.Y on January 7, 2020.
- Lee Hang Gyul (7th) and Nam Do Hyon (8th) debuted as a duo called H&D on March 26, 2020.
- Song Hyeong Jun (4th), Kang Min Hee (10th), Koo Jung Mo (13th) and Ham Won Jin (16th) debuted in CRAVITY on April 14, 2020.
- Kim Woo Seok (2nd) debuted as a soloist on May 25, 2020.
- Won Hyuk (33rd) and Lee Won Jun (47th) debuted in E'LAST on June 9, 2020.
- Nam Dong Hyun (60th) debuted as a soloist on July 26, 2020 under the stage name BOYHOOD.
- Han Seung Woo (3rd) made his solo debut on August 10, 2020.
- Kim Yo Han (1st) made his solo debut on August 25, 2020.
- Lee Eun Sang (11th) made his solo debut on August 31, 2020.
- Lee Jin Woo (22nd), Lee Woo Jin (41st), Choi Jun Seong (45th) and Lee Tae Seung (53rd) debuted in GHOST9 on September 23, 2020.
- Kim Yo Han (1st) and Kang Seok Hwa (35th) debuted in the group WEi on October 5, 2020.
- Mnet Reveals Teaser For Next Season In “Produce 101” Series
- “Produce 101” To Reportedly Create Boy Group With 4th Season + Mnet Responds
- Age shown is by Korean age
- Koreaboo: Meet The 11 Trainees That Will Form Produce X 101's Winning Group "X1"
- Soompi: Breaking: X1 Members' Agencies Announce Group's Disbandment