Minister of State for Union Affairs
The Minister of State for Union Affairs is the head of the State Ministry in the Vice President's Office for Union Affairs of the Government of Tanzania.
List of Ministers
The following have served the ministry:; Party
| # | Portrait | Minister | Portfolio | Took Office | Left Office | President |
| Arcado Ntagazwa | Union Affairs and Environment | 2000 | 2005 | Benjamin Mkapa | ||
| 1 | Hussein Mwinyi | Union Affairs | 2006 | 2008 | Jakaya Kikwete | |
| 2 | Muhammed Seif Khatib | Union Affairs | 2008 | 2010 | Jakaya Kikwete | |
| 3 | Samia Suluhu | Union Affairs | 2010 | Incumbent | Jakaya Kikwete |