The best selling album in 2021 in Korea was BUTTER by BTS (방탄소년단) which sold 2,999,407 copies.
| Rank | Artist | Album | Sales | Released |
| 1 |
BTS (방탄소년단) |
BUTTER |
2,999,407 |
2021 |
| 2 |
NCT 127 |
STICKER / FAVORITE
[First issue Sticker] |
2,427,559 |
2021 |
| 3 |
NCT DREAM |
HOT SAUCE / HELLO FUTURE
[First issue Hot Sauce] |
2,097,185 |
2021 |
| 4 |
SEVENTEEN (세븐틴) |
ATTACCA |
2,059,073 |
2021 |
| 5 |
NCT |
UNIVERSE - THE 3RD ALBUM |
1,630,715 |
2021 |
| 6 |
SEVENTEEN (세븐틴) |
YOUR CHOICE |
1,462,405 |
2018 |
| 7 |
EXO (엑소) |
DON'T FIGHT THE FEELING - SPECIAL ALBUM |
1,326,189 |
2021 |
| 8 |
STRAY KIDS (스트레이 키즈) |
NOEASY |
1,303,106 |
2021 |
| 9 |
ENHYPEN |
DIMENSION _ DILEMMA |
1,205,949 |
2021 |
| 10 |
BTS (방탄소년단) |
BE |
1,049,496 |
2020 |
| 11 |
NCT DREAM |
HOT SAUCE / HELLO FUTURE
[Repackage Hello Future] |
1,025,005 |
2021 |
| 12 |
BAEKHYUN (백현) |
BAMBI - THE 3RD MINI ALBUM |
996,850 |
2021 |
| 13 |
NCT 127 |
STICKER / FAVORITE
[Repackage Favorite] |
934,986 |
2021 |
| 14 |
TOMORROW X TOGETHER (투모로우바이투게더) |
THE CHAOS CHAPTER: FREEZE |
877,917 |
2021 |
| 15 |
ENHYPEN |
BORDER _ CARNIVAL |
788,451 |
2021 |
| 16 |
TOMORROW X TOGETHER (투모로우바이투게더) |
THE CHAOS CHAPTER: FIGHT OR ESCAPE |
775,121 |
2021 |
| 17 |
STRAY KIDS (스트레이 키즈) |
CHRISTMAS EVEL |
743,047 |
2021 |
| 18 |
ATEEZ (에이티즈) |
ZERO _ FEVER PART.3 |
737,124 |
2021 |
| 19 |
TWICE |
FORMULA OF LOVE_ O+T= <3 |
714,955 |
2021 |
| 20 |
LISA (리사) |
LALISA |
708,475 |
2021 |
| 21 |
THE BOYZ (더보이즈) |
6TH MINI ALBUM [THRILL-ING] |
642,992 |
2021 |
| 22 |
THE BOYZ (더보이즈) |
3RD SINGLE ALBUM [MAVERICK] |
642,369 |
2021 |
| 23 |
AESPA |
SAVAGE - THE 1ST MINI ALBUM |
574,445 |
2021 |
| 24 |
TWICE |
TASTE OF LOVE |
559,093 |
2021 |
| 25 |
ROSE (로제) |
R |
516,915 |
2021 |
| 26 |
ATEEZ (에이티즈) |
ZERO _ FEVER PART.2 |
514,515 |
2021 |
| 27 |
ITZY (있지) |
CRAZY IN LOVE |
500,124 |
2021 |
| 28 |
BTS (방탄소년단) |
LOVE YOURSELF: TEAR |
458,050 |
2018 |
| 29 |
SUPER JUNIOR (슈퍼주니어) |
THE RENAISSANCE - THE 10TH ALBUM |
442,742 |
2021 |
| 30 |
MONSTA X (몬스타엑스) |
NO LIMIT |
424,618 |
2021 |
| 31 |
BTS (방탄소년단) |
LOVE YOURSELF: ANSWER |
411,822 |
2018 |
| 32 |
ATEEZ (에이티즈) |
ZERO_ FEVER EPILOGUE |
407,165 |
2021 |
| 33 |
IU (아이유) |
5TH ALBUM 'LILAC' |
402,864 |
2021 |
| 34 |
NCT |
RESONANCE PT. 2
[Standard edition] |
393,900 |
2020 |
| 35 |
BTS (방탄소년단) |
LOVE YOURSELF: HER |
391,160 |
2017 |
| 36 |
D.O. (디오) |
공감 - THE 1ST MINI ALBUM |
380,178 |
2021 |
| 37 |
RED VELVET (레드벨벳) |
QUEENDOM - THE 6TH MINI ALBUM |
363,602 |
2021 |
| 38 |
ASTRO (아스트로) |
ALL YOURS |
360,911 |
2021 |
| 39 |
BTS (방탄소년단) |
MAP OF THE SOUL: PERSONA |
358,154 |
2019 |
| 40 |
MONSTA X (몬스타엑스) |
ONE OF A KIND |
352,734 |
2021 |
| 41 |
BTS (방탄소년단) |
MAP OF THE SOUL: 7 |
345,192 |
2019 |
| 42 |
ITZY (있지) |
GUESS WHO |
339,940 |
2021 |
| 43 |
TREASURE (트레저) |
THE FIRST STEP _ TREASURE EFFECT |
331,320 |
2021 |
| 44 |
KANG DANIEL (강다니엘) |
YELLOW |
320,114 |
2021 |
| 45 |
ASTRO (아스트로) |
SWITCH ON |
310,979 |
2021 |
| 46 |
SHINEE (샤이니) |
DON'T CALL ME - THE 7TH ALBUM |
307,859 |
2021 |
| 47 |
WAYV |
KICK BACK - THE 3RD MINI ALBUM |
276,132 |
2021 |
| 48 |
NCT DREAM |
HOT SAUCE / HELLO FUTURE
[Repackage Hello Future kit version] |
269,641 |
2021 |
| 49 |
IVE (아이브) |
ELEVEN |
268,396 |
2021 |
| 50 |
KAI (카이) |
PEACHES - THE 2ND MINI ALBUM |
265,201 |
2021 |
| 51 |
NCT 127 |
STICKER / FAVORITE
[Repackage Favorite kit version] |
230,350 |
2021 |
| 52 |
(G)I-DLE ((여자)아이들) |
I BURN |
219,409 |
2021 |
| 53 |
SF9 (에스에프나인) |
TURN OVER |
217,201 |
2021 |
| 54 |
NU'EST (뉴이스트) |
ROMANTICIZE |
205,972 |
2021 |
| 55 |
NCT |
EMPATHY |
199,062 |
2018 |
| 56 |
BLACKPINK |
THE ALBUM |
190,729 |
2020 |
| 57 |
ENHYPEN |
BORDER _ DAY ONE |
189,832 |
2020 |
| 58 |
BTS (방탄소년단) |
THE MOST BEAUTIFUL MOMENT IN LIFE- YOUNG FOREVER |
186,595 |
2016 |
| 59 |
BTS (방탄소년단) |
WINGS |
184,418 |
2016 |
| 60 |
BTS (방탄소년단) |
YOU NEVER WALK ALONE |
184,398 |
2017 |
| 61 |
CRAVITY |
1ST ALBUM PART 1 [THE AWAKENING_ WRITTEN IN THE STARS] |
181,291 |
2021 |
| 62 |
SF9 (에스에프나인) |
RUMINATION |
179,581 |
2021 |
| 63 |
U-KNOW (유노윤호) |
NOIR - THE 2ND MINI ALBUM |
178,643 |
2021 |
| 64 |
ONEUS (원어스) |
BLOOD MOON |
177,877 |
2021 |
| 65 |
CRAVITY |
HIDEOUT_ BE OUR VOICE - SEASON 3. |
176,511 |
2021 |
| 66 |
WENDY (웬디) |
LIKE WATER - THE 1ST MINI ALBUM |
172,598 |
2021 |
| 67 |
BTS (방탄소년단) |
화양연화 PT.2 (THE MOST BEAUTIFUL MOMENT IN LIFE, PT. 2) |
166,566 |
2015 |
| 68 |
STAYC(스테이씨) |
STEREOTYPE |
166,529 |
2021 |
| 69 |
TOMORROW X TOGETHER (투모로우바이투게더) |
MINISODE1 _ BLUE HOUR |
161,879 |
2020 |
| 70 |
SEVENTEEN (세븐틴) |
AN ODE |
153,073 |
2019 |
| 71 |
GOLDEN CHILD (골든차일드) |
2ND ALBUM [GAME CHANGER] |
148,177 |
2021 |
| 72 |
SHINEE (샤이니) |
DON'T CALL ME / ATLANTIS |
147,023 |
2021 |
| 73 |
JEONG DONG WON (정동원) |
그리움, 아낌없이 주는 나무 |
144,576 |
2021 |
| 74 |
2PM (장우영) |
MUST |
143,480 |
2021 |
| 75 |
TAEMIN (태민) |
ADVICE - THE 3RD MINI ALBUM |
136,370 |
2021 |
| 76 |
MAMAMOO (마마무) |
WAW |
135,165 |
2021 |
| 77 |
BAMBAM (뱀뱀) |
RIBBON |
134,845 |
2021 |
| 78 |
BTS (방탄소년단) |
화양연화 PT.1 (THE MOST BEAUTIFUL MOMENT IN LIFE, PT. 1) |
132,293 |
2015 |
| 79 |
NCT DREAM |
WE BOOM - THE 3RD MINI ALBUM |
129,803 |
2019 |
| 80 |
DREAMCATCHER (드림캐쳐) |
DYSTOPIA _ ROAD TO UTOPIA |
129,797 |
2021 |
| 81 |
DREAMCATCHER (드림캐쳐) |
SUMMER HOLIDAY |
129,715 |
2021 |
| 82 |
LOONA (이달의 소녀) |
[&] |
128,517 |
2021 |
| 83 |
KEY (키) |
BAD LOVE - THE 1ST MINI ALBUM |
128,448 |
2021 |
| 84 |
STRAY KIDS (스트레이 키즈) |
IN生 |
125,570 |
2020 |
| 85 |
BTS (방탄소년단) |
O! RUL8 ,2? |
125,217 |
2013 |
| 86 |
ONEUS (원어스) |
DEVIL |
123,380 |
2021 |
| 87 |
BTS (방탄소년단) |
DARK & WILD |
122,505 |
2014 |
| 88 |
BTS (방탄소년단) |
SKOOL LUV AFFAIR |
121,285 |
2014 |
| 89 |
BLACKPINK |
KILL THIS LOVE |
120,001 |
2019 |
| 90 |
BTS (방탄소년단) |
2 COOL 4 SKOOL |
115,160 |
2013 |
| 91 |
PENTAGON (펜타곤) |
LOVE OR TAKE |
114,355 |
2021 |
| 92 |
VICTON (빅톤) |
VOICE _ THE FUTURE IS NOW |
114,245 |
2021 |
| 93 |
NCT |
RESONANCE PT. 2
[Kit version] |
114,093 |
2020 |
| 94 |
GOLDEN CHILD (골든차일드) |
5TH MINI ALBUM [YES.] |
113,966 |
2021 |
| 95 |
STRAY KIDS (스트레이 키즈) |
GO生 |
113,463 |
2020 |
| 96 |
HIGHLIGHT (하이라이트) / BEAST (비스트) |
THE BLOWING |
111,968 |
2021 |
| 97 |
LEE CHAN-WON (이찬원) |
선물 |
111,817 |
2021 |
| 98 |
OH MY GIRL (오마이걸) |
DEAR OHMYGIRL |
111,804 |
2021 |
| 99 |
ONF (온앤오프) |
SUMMER POPUP ALBUM [POPPING] |
111,696 |
2021 |
| 100 |
KANG SEUNG-YOON (강승윤) |
PAGE |
111,497 |
2021 |
Source: Gaon Charts
