| Giovanni Dekeyser | |
| Fullname: | Giovanni Dekeyser |
| Birth Date: | 1976 12, df=y |
| Birth Place: | Bruges, Belgium |
| Position: | midfielder |
| Years1: | 1996–2001 |
| Years2: | 2001–2002 |
| Years3: | 2002–2003 |
| Years4: | 2004–2005 |
| Years5: | 2005–2006 |
| Years6: | 2006 |
| Years7: | 2006–2007 |
| Clubs2: | Royal Antwerp F.C. |
| Clubs3: | Cercle Brugge |
| Clubs4: | K.M.S.K. Deinze |
| Clubs6: | K.S.V. Bornem |
| Clubs7: | Sint-Eloois-Winkel |
| Clubs8: | K.S.K. Maldegem |
| Clubs9: | K.F.C. Eeklo |
| Caps1: | 152 |
| Caps2: | 17 |
| Caps3: | 30 |
| Goals1: | 19 |
| Goals2: | 1 |
| Goals3: | 2 |
| Pcupdate: | 17 July 2011 |
| Ntupdate: | 17 July 2011 |
Giovanni Dekeyser (born 10 December 1976 in Bruges) is a Belgian football midfielder who currently plays for East Flanders lower league side K.F.C. Eeklo.
He made his senior debut for Cercle Brugge in second division in a 1–1 draw against K.F.C. Lommel S.K., on 17 August 1996. Giovanni Dekeyser became Cercle Brugge top scorer in 2001 and was voted player of the year. This earned him a transfer to Royal Antwerp F.C., who then competed at the highest level of Belgian football. Dekeyser returned to Cercle Brugge after one season where he became second division champions in May 2003.
Other teams of Giovanni Dekeyser include Deinze, Oostende, K.S.V. Bornem, Sint-Eloois-Winkel, Maldegem and Eeklo.