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.
- They were expected to promote for five years, with two and a half years exclusively promoting together, however, the group disbanded on January 6, 2020 due to the Produce 101 vote rigging controversy.
- After the group's disbanded, members were returned to their agency
- Lee Hang Gyul (7th) and Nam Do Hyon (8th) debuted as a duo called H&D on March 26, 2020. Later they debuted in group BAE173 on November 19, 2020.
- Song Hyeong Jun (4th), Kang Min Hee (10th) debuted in CRAVITY on April 14, 2020.
- Kim Woo Seok (2nd) debuted as a soloist on May 25, 2020.
- Cho Seung Youn (5th) made his solo comeback on June 29, 2020.
- Han Seung Woo (3rd) made his solo debut on August 10, 2020.
- Kim Yo Han (1st) made his solo debut on August 25, 2020. Later debuted in group WEi on October 5, 2020.
- Lee Eun Sang (11th) made his solo debut on August 31, 2020.
- Cha Jun Ho (9th) debuted in group DRIPPIN on October 28, 2020.
- Son Dong Pyo (6th) debuted in group MIRAE on March 17, 2021.
- 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.
- Koo Jung Mo (13th) and Ham Won Jin (16th) debuted in CRAVITY on April 14, 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.
- Kang Seok Hwa (35th) debuted in the group WEi on October 5, 2020.
- Hwang Yun Seong (15th), Kim Dong Yun (23rd), Lee Hyeop (24th), Joo Chang Uk (29th) and Kim Min Seo (52nd) debuted in group DRIPPIN on October 28, 2020.
- Lee Jun Hyuk (75th) debuted in group MIRAE on March 17, 2021.
- Lee Ha Min (63rd) was officially introduced as a member of Bz-Boys on May 10, 2021.
- Keum Dong Hyun (14th) debuted in group EPEX on June 8, 2021.
- Choi Su Hwan (28th) debuted as a soloist on October 18, 2021.