| Mahmadu Bah | |
| Fullname: | Mahmadu Alphajor Bah |
| Birth Date: | 1 January 1977 |
| Birth Place: | Freetown, Sierra Leone |
| Death Place: | Freetown, Sierra Leone |
| Position: | Midfielder |
| Years1: | 1994–1996 |
| Years2: | 1997–1998 |
| Years3: | 1999–2003 |
| Years4: | 2004 |
| Years5: | 2005 |
| Years6: | 2005–2007 |
| Years7: | 2007–2008 |
| Years8: | 2008–2009 |
| Years9: | 2012 |
| Clubs8: | Al-Sailiya |
| Clubs9: | Perlis FA |
| Caps1: | 15 |
| Caps2: | 30 |
| Caps3: | 70 |
| Caps4: | 21 |
| Caps5: | 9 |
| Caps8: | 4 |
| Goals1: | 1 |
| Goals2: | 7 |
| Goals3: | 6 |
| Goals4: | 3 |
| Goals5: | 0 |
| Goals8: | 0 |
| Nationalyears1: | 2000–2008 |
| Nationalteam1: | Sierra Leone |
| Nationalcaps1: | 18 |
| Nationalgoals1: | 2 |
| Pcupdate: | 7 October 2007 |
| Ntupdate: | 7 October 2007 |
Mahmadu Alphajor Bah (1 January 1977 – 21 September 2016) was a Sierra Leonean footballer who played mostly as an attacking midfielder.
His clubs included Halmstads BK in Sweden, KSC Lokeren in Belgium, Chunnam Dragons in South Korea, Xiamen Lanshi and Zhejiang Lücheng in China, Al-Qadisiya in Saudi Arabia, and Perlis FA in Malaysia.
Alphajor Bah died in a traffic collision in Freetown on 21 September 2016 when the vehicle he was driving was hit by a truck coming in an opposite road direction.[1]
Alphajor Bah was a regular member of Sierra Leone national team, known as the Leone Stars, between the years 2000 and 2008. He regularly played as an attacking midfielder or sometimes as a second striker for the Sierra Leone national team alongside striker Mohamed Kallon.
Alphajor Bah was a very religious Muslim and he often publicly preached about Islam and the life of the Prophet Mohammad.