Alex Amankwah (born 3 March 1992) is a Ghanaian middle-distance runner specialising in the 800 metres. He attended college and competed in athletics at the University of Alabama, where he set a school record and was a First Team All-American in the indoor 800 metres. He qualified for the 800 metres at the 2015 World Championships in Beijing, China but was unable to compete due to visa issues. He also represented Ghana in the 4 × 400 metres relay at the 2015 African Games. Amankwah represented Ghana in the 800 metres at the 2016 Summer Olympics in Rio de Janeiro, Brazil.