| Nurettin Ersin | |
| Birth Date: | 1918 |
| Birth Place: | Gelibolu, Ottoman Empire |
| Death Place: | Ankara, Turkey |
| Office: | General Commander of the Gendarmerie of Turkey |
| Term Start: | 22 August 1975 |
| Term End: | 5 January 1976 |
| Predecessor: | Orhan Yiğit |
| Successor: | Şahap Yardımoğlu |
| Office1: | Chief of the General Staff of Turkey |
| Term Start1: | 1 July 1983 |
| Term End1: | 6 December 1983 |
| Predecessor1: | Kenan Evren |
| Successor1: | Necdet Üruğ |
| Office2: | Commander of the Turkish Army |
| Term Start2: | 9 March 1978 |
| Term End2: | 1 July 1983 |
| Predecessor2: | Kenan Evren |
| Successor2: | Necdet Üruğ |
| Allegiance: | Turkey |
| Branch: | Turkish Army |
| Rank: | General |
Nurettin Ersin (1918 – 3 October 2005) was a Turkish general. He was the Commander of the 6th Corps during the 1974 invasion of Cyprus, and the Commander of the Turkish Army during the 1980 military coup.[1] [2] After the coup he was a member of the Presidential Council, and was Chief of the General Staff of Turkey in the second half of 1983.
Ersin, who was born in Çanakkale, was also head of the National Intelligence Organization (2 August 1971 – 25 July 1973), Secretary General of the National Security Council (5 January 1976 – 30 August 1977), and Commander of the First Army of Turkey (30 August 1977 – 8 March 1978).