Tanzania: Heads of State: 1964-2026
| Rais wa Jamhuri ya Muungano :: President of the United Republic | |
| 26 Apr 1964 - 5 Nov 1985 | Julius Kambarage Nyerere [1] |
| 5 Nov 1985 - 23 Nov 1995 | Ali Hassan Mwinyi |
| 23 Nov 1995 - 21 Dec 2005 | Benjamin William Mkapa |
| 21 Dec 2005 - 5 Nov 2015 | Jakaya Mrisho Kikwete |
| 5 Nov 2015 - 17 Mar 2021 | John Pombe Joseph Magufuli |
| 17 Mar 2021 - | Samia Suluhu Hassan [2] |
- Also in Tanganyika
- The term of Hassan commenced on 17 Mar 2021, but he took the oath of office on 19 Mar 2021.