| Ali Mohamed Shein | |
| Order: | 7th |
| Office: | President of Zanzibar |
| Term Start: | 3 November 2010 |
| Term End: | 3 November 2020 |
| Predecessor: | Amani Abeid Karume |
| Successor: | Hussein Mwinyi |
| Order2: | 8th |
| Office2: | Vice President of Tanzania |
| Term Start2: | 13 July 2001 |
| Term End2: | 3 November 2010 |
| President2: | Benjamin Mkapa Jakaya Kikwete |
| Predecessor2: | Omar Ali Juma |
| Successor2: | Mohamed Gharib Bilal |
| Birth Date: | 13 March 1948 |
| Birth Place: | Chokocho, Pemba, Zanzibar |
| Nationality: | Tanzanian |
| Spouse: | Mwanamwema Shein |
| Party: | CCM |
| Residence: | Zanzibar State House (former) |
| Education: | Lumumba Secondary School |
| Alma Mater: | Odesa University Newcastle University Medical School |
| Profession: | Medical doctor |
Ali Mohamed Shein (born 13 March 1948) was the 7th President of Zanzibar,[1] from 2010 to 2020. He was previously Vice President of Tanzania from 2001 to 2010. Shein is originally from the island of Pemba, and he is a member of the ruling Chama Cha Mapinduzi (CCM) party. He is a medical doctor by profession.
Shein was appointed by the President of Zanzibar to be a Member of the House of Representatives on 29 October 1995.He was then appointed Deputy Minister of Health on 12 November 1995. From 6 November 2000, he was a Member of the House of Representatives at Mkanyageni Constituency in Zanzibar before being appointed to be a Minister of State, President's Office, Constitution, and Good Governance in Zanzibar on 22 November 2000, and Vice President of Tanzania in July 2001.[2]
Shein has been nominated by the ruling party CCM on 9 July 2010 as a presidential candidate for CCM in Zanzibar. Shein got 117 votes while Bilali and Shamsi Vuai Nahodha got 54 and 33 respectively and was elected a new president of Zanzibar and the only one from Pemba Island by 50.1% on 31 October 2010.[3]