| Fullname: | Muhammad Irfan bin Shamsuddin |
| Nationality: | Malaysian |
| Birth Place: | Negeri Sembilan |
| Height: | 190 cm[1] |
| Sport: | Athletics |
| Event: | Discus throw |
| Pb: | 62.55 (2017) |
| Alma Mater: | University of Malaya |
| Education: | Sports science |
| Show-Medals: | yes |
Muhammad Irfan bin Shamsuddin (born 16 August 1995) is a Malaysian discus thrower who won a silver medal at the 2017 Asian Championships. He placed 12th and 5th at the 2014 and 2018 Asian Games, respectively.