Mas Isman
| Mas Isman | |
|---|---|
| Mas Isman on a 2018 stamp of Indonesia | |
| Personal details | |
| Born | 1 January 1924 Bondowoso, East Java | 
| Died | 12 December 1982 (aged 58) Surabaya, East Java | 
| Awards | National Hero of Indonesia | 
| Military service | |
| Allegiance | Indonesia | 
| Branch/service | Indonesian Army | 
| Rank | Mayor General | 
| Battles/wars | Indonesian National Revolution | 
Mas Isman (1 January 1924 –12 December 1982) was an Indonesian freedom fighter in East Java when it was part of the Dutch East Indies. He received a National Hero of Indonesia award from President Joko Widodo on 5 November 2015.
Mas Isman was the father of Hayono Isman, Indonesia's Minister of Youth and Sports Affairs.