| Honorific-Prefix: | His Excellency |
| Htun Htun Oo | |
| Native Name Lang: | my |
| Order: | Union Attorney General of Myanmar |
| President: | Htin Kyaw Myint Swe (acting) Win Myint |
| Term Start: | 5 April 2016 |
| Term End: | 2 February 2021 |
| Predecessor: | Tun Shin |
| Successor: | Dr Thida Oo |
| Order2: | Deputy Attorney General of Myanmar |
| Term End2: | 5 April 2016 |
| Birth Place: | Myanmar |
| Nationality: | Burmese |
| Occupation: | Attorney |
Htun Htun Oo (Burmese: ထွန်းထွန်းဦး; also spelt Tun Tun Oo) is the Attorney General of Myanmar (Burma). He previously served as Deputy Attorney General in President Thein Sein's Cabinet.[1]
He also served as chairman to draft two of the four controversial bills designed to regulate religious conversion and population-control measures in Myanmar.[2] [3]