These notable South Korean idol groups debuted in the 2020s. Only groups that have an article in Wikipedia are listed here.
2020
Aespa Astro – Moonbin & Sanha B.O.Y BAE173 Blackswan Botopass BtoB 4U Cignature Cravity Craxy DKB Drippin E'Last Enhypen Even of Day Ghost9 H&D Lunarsolar MCND NiziU P1Harmony Redsquare Red Velvet – Irene & Seulgi Refund Sisters Secret Number SSAK3 STAYC TO1 Treasure UNVS Weeekly WEi Wooah
2021
Billlie Blitzers BugAboo Ciipher Epex Hot Issue Ichillin' Isegye Idol Ive Just B Lightsum Luminous Mirae NTX Omega X Pixy Purple Kiss TFN The KingDom Tri.be Xdinary Heroes
2022
&Team Aimers Astro – Jinjin & Rocky ATBO Blank2y Classy CSR Fifty Fifty Got the Beat H1-Key ILY:1 Irris Kep1er Lapillus Le Sserafim Mamamoo+ Mimiirose NewJeans Nmixx Superkind TAN Tempest TNX Trendz Viviz WSG Wannabe Younite
2023
8Turn 82Major Ampers&One Babymonster BoyNextDoor BXB El7z Up Evnne Fantasy Boys Hori7on Kiss of Life Loossemble Lun8 Mave: N.SSign NCT DoJaeJung NCT Wish Nexz One Pact Plave Pow Primrose Riize Shownu X Hyungwon The Wind TIOT TripleS Xikers X:IN Xodiac Young Posse Zerobaseone
2024
All(H)Ours ARrC Artms B.D.U Badvillain Big Ocean Candy Shop Dragon Pony Dxmon Geenius Genblue Illit Izna Madein Meovv Mytro NOMAD Nowz Rescene Say My Name TWS Unis VVUP Waker Waterfire
2025
1Verse Ablume AHOF AllDay Project Am8ic AtHeart AxMxP Baby Dont Cry Close Your Eyes Cortis Hearts2Hearts Hitgs Hoshi X Woozi Idid Idntt Ifeye KickFlip KiiiKiii Kiiras Newbeat Nouera S.Coups X Mingyu UAU VVS Xlov
2026
AEN Alpha Drive One And2ble Daily:Direction DK X Seungkwan Dodree Flare U Hiipe Princess Keyveatz Latency Lngshot Modyssey NCT JNJM Ourbirthday OWIS Tuide Unchild Yuhz V8
See also List of South Korean idol groups (1990s) List of South Korean idol groups (2000s) List of South Korean idol groups (2010s)