| Roles | Competed in Olympic Games |
|---|---|
| Sex | Female |
| Full name | Ghislaine Mathilde Alfred Eugénie•Janssen (de Mot-) |
| Used name | Ghislaine•Janssen |
| Born | 12 August 1889 in Saint-Gilles, Région de Bruxelles-Capitale (BEL) |
| Died | 19 August 1975 (aged 86 years 7 days) in Dilbeek, Vlaams Brabant (BEL) |
| Affiliations | Royal Léopold Club, Bruxelles (BEL) |
| NOC | Belgium |
Ghislaine Janssen played only singles at the 1924 Paris Olympics. She lost in straight sets in the first round to Hungarian Ilona Váradi-Péter.
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1924 Summer Olympics | Tennis | BEL |
Ghislaine Janssen | |||
| Singles, Women (Olympic) | =28 | |||||
| Doubles, Women (Olympic) | Marthe Dupont |
Name previously listed as Marie Janssen, but further research has determined that this is incorrect.