| Guy Mamoun | |
| Fullname: | Guy Bertrand Ngon Mamoun |
| Birth Date: | 4 November 1983 |
| Birth Place: | Metet, Yaoundé, Cameroon |
| Position: | Midfielder |
| Years1: | 1999–2000 |
| Years2: | 2000–2001 |
| Years3: | 2001–2003 |
| Years4: | 2003–2004 |
| Years5: | 2004–2006 |
| Years6: | 2006–2009 |
| Years7: | 2009–2010 |
| Years8: | 2010–2013 |
| Years9: | 2013–2014 |
| Years10: | 2014–2015 |
| Clubs8: | Persema Malang |
| Clubs9: | Gresik United |
| Clubs10: | Persik Kediri |
| Caps1: | 19 |
| Caps2: | 15 |
| Caps3: | 21 |
| Caps4: | 20 |
| Caps5: | 18 |
| Caps6: | 17 |
| Caps7: | 21 |
| Caps8: | 58 |
| Caps9: | 15 |
| Caps10: | 18 |
| Goals1: | 6 |
| Goals2: | 6 |
| Goals3: | 9 |
| Goals4: | 4 |
| Goals5: | 7 |
| Goals6: | 7 |
| Goals7: | 8 |
| Goals8: | 14 |
| Goals9: | 4 |
| Goals10: | 10 |
| Nationalcaps1: | 16 |
| Nationalgoals1: | 6 |
| Pcupdate: | 02:12, 13 September 2014 (UTC) |
Guy Bertrand Ngon Mamoun (born November 4, 1983, in Metet, Yaoundé) is a Cameroonian former footballer who plays as a midfielder.