* '''[[Loona 1/3]]''' (이달의 소녀 1/3) – HaSeul <small>(pemimpin subunit<ref>{{cite web|last=Shin|first=Mi-rae|url=http://news.mk.co.kr/newsRead.php?year=2017&no=507982|title="과즙美 팡팡"…이달의 소녀 최리의 착한 미모|publisher=MK News|language=ko}}</ref>)</small>, ViVi, HeeJin, HyunJin<ref>{{Cite web|url=http://people.search.naver.com/search.naver?where=nexearch&sm=tab_ppn&query=%EC%9D%B4%EB%8B%AC%EC%9D%98%EC%86%8C%EB%85%801%2F3&os=5530718&ie=utf8&key=PeopleService|title=이달의 소녀 1/3 프로필|publisher=Naver|language=ko}}</ref>
* '''[[Loona Odd Eye Circle]]''' (이달의 소녀 오드아이써클) – Kim Lip <small>(pemimpin subunit<ref>{{cite web|url=http://m.post.naver.com/viewer/postView.nhn?volumeNo=10462407&memberNo=39258591|title=오드아이써클 Max&Match 사인회 현장&선물처럼 찾아온 깜짝 소녀는?!|publisher=Naver|language=ko}}</ref>)</small>, JinSoul, Choerry<ref>{{cite web|url=http://people.search.naver.com/search.naver?where=nexearch&sm=tab_ppn&query=%EC%9D%B4%EB%8B%AC%EC%9D%98%EC%86%8C%EB%85%80%EC%98%A4%EB%93%9C%EC%95%84%EC%9D%B4%EC%8D%A8%ED%81%B4&os=6353469&ie=utf8&key=PeopleService|title=이달의 소녀 오드아이써클 프로필|publisher=Naver|language=ko}}</ref>
* '''[[Yyxy|Loona yyxy]]''' (이달의 소녀 yyxy, ''youth youth by young'') – Yves <small>(pemimpin subunit<ref>{{cite web|last=Jeon|first=Hyo-jin|url=https://sports.donga.com/3/all/20180514/90063471/1|title=이달의 소녀 유닛 yyxy, 리더 이브 재킷 사진 공개|publisher=[[The Dong-a Ilbo|Donga]]|language=ko}}</ref>)</small>, Chuu, Go Won, Olivia Hye<ref>{{cite web|url=https://people.search.naver.com/search.naver?where=nexearch&sm=tab_ppn&query=이달의소녀yyxy&os=8284540&ie=utf8&key=PeopleService|title=이달의 소녀 yyxy 프로필|publisher=Naver|language=ko|access-date=2022-06-04|archive-date=2020-10-10|archive-url=https://web.archive.org/web/20201010093208/https://people.search.naver.com/search.naver?where=nexearch&sm=tab_ppn&query=%EC%9D%B4%EB%8B%AC%EC%9D%98%EC%86%8C%EB%85%80yyxy&os=8284540&ie=utf8&key=PeopleService|dead-url=yes}}</ref>
