| Honorific-Prefix: | Major General |
| Tin Sein | |
| Native Name Lang: | my |
| Office: | Deputy Minister for Defence of Myanmar |
| Term Start: | early 1983 |
| Term End: | ? |
| Birth Date: | 22 February 1926 |
| Birth Place: | Rangoon, British Burma |
| Death Date: | 15 August 2020 (aged 93–94) |
| Nationality: | Burmese |
| Occupation: | Military general, Union Minister |
| Relations: | Nay Shwe Thway Aung (grandson) |
| Children: | Nay Soe Maung |
| Allegiance: |  Myanmar |
| Branch: | Myanmar Army |
| Rank: | Major General |
Major General Tin Sein (Burmese: တင်စိန်, 22 February 1926 – 15 August 2020) was a Burmese military official and major general in the Myanmar Army. He has served as Deputy Minister of Defence of Myanmar under Ne Win's cabinet.[1] [2]
Tin Sein's son, Nay Soe Maung married Kyi Kyi Shwe, the daughter of Than Shwe, Myanmar's dictator and formerly head of a military junta.[3]
Tin Sein died on 15 August 2020.[4]