| Abdi Kassim Sadallah | |
| Birth Place: | Zanzibar, Tanzania |
| Position: | Midfielder |
| Years1: | 2002–2003 |
| Clubs1: | Mlandege |
| Years2: | 2004–2006 |
| Clubs2: | Mtibwa Sugar F.C. |
| Caps2: | 55 |
| Goals2: | 7 |
| Years3: | 2007–2010 |
| Clubs3: | Young Africans S.C. |
| Caps3: | 65 |
| Goals3: | 29 |
| Years4: | 2011 |
| Clubs4: | Đồng Tâm Long An |
| Caps4: | 26 |
| Goals4: | 7 |
| Years5: | 2011–2012 |
| Clubs5: | Azam F.C. |
| Caps5: | 25 |
| Goals5: | 3 |
| Years6: | 2013 |
| Clubs6: | KMKM |
| Caps6: | 14 |
| Goals6: | 6 |
| Years7: | 2014 |
| Clubs7: | UiTM F.C. |
| Caps7: | 8 |
| Goals7: | 1 |
| Years8: | 2016–2018 |
| Clubs8: | Jang'ombe Boys |
| Years9: | 2018–2019 |
| Clubs9: | Mawenzi Market |
| Years10: | 2019–2020 |
| Clubs10: | KMKM |
| Nationalyears1: | 2002–2012 |
| Nationalteam1: | Tanzania |
| Nationalcaps1: | 25 |
| Nationalgoals1: | 4 |
| Nationalyears2: | 2005–2012 |
| Nationalteam2: | Zanzibar |
| Nationalcaps2: | 14 |
| Nationalgoals2: | 2 |
Abdi Kassim (born October 19, 1984 in Zanzibar) is a footballer from Tanzania.
Also known as BABI or sometime Ballack of unguja, Kassim was the first player to score a goal in Tanzania's new stadium in Dar es Salaam, the Benjamin Mkapa National Stadium, in a friendly match against Uganda to mark the official opening of the venue. The stadium was built by the Chinese Government in collaboration with the Tanzania government.
Kassim is noted for his long range shooting ability. He favours his left foot.
On 4 January 2011, Yanga and Tanzanian national team midfielder Abdi Kassim has signed a two-year contract with a Vietnamese club, Đồng Tâm Long An.[1]