Member ages
Oh My Girl Member Ages and Birthdays
Oh My Girl member ages and birthdays ranked oldest to youngest, from Hyojung at age 31 to Arin at age 27.
Average29.4years old
Oldest to youngest
| Rank | Member | Age | Birthday | Position |
|---|---|---|---|---|
| #1 | HyojungMember | 31 | Jul 28, 1994 | Leader, Lead Vocalist |
| #2 |  MimiMember | 31 | May 1, 1995 | Main Rapper, Main Dancer |
| #3 |  YooAMember | 30 | Sep 17, 1995 | Main Dancer, Lead Vocalist |
| #4 |  SeungheeMember | 30 | Jan 25, 1996 | Main Vocalist |
| #5 |  JihoMember | 29 | Apr 4, 1997 | Lead Dancer, Vocalist |
| #6 |  BinnieMember | 28 | Sep 9, 1997 | Lead Vocalist |
| #7 | ArinMember | 27 | Jun 18, 1999 | Lead Dancer, Vocalist, Maknae |