- Source: O (hangul)
- Jaehyun
- T.O.P
- D.O. (penghibur)
- H.O.T.
- Tabel konsonan dan vokal Hangeul
- Rieul (Hangeul)
- The God of High School
- Another Miss Oh
- Madtown
- Oh My Ghost (seri televisi Korea Selatan)
- O (hangul)
- Hangul
- Origin of Hangul
- Hangul consonant and vowel tables
- Kashmir stag
- OO
- Korean language
- Sang-O-class submarine
- Korean mixed script
- Mokuto-Ō
ㅗ (o) is one of the Korean hangul.