| Games: | World Aquatics Championships |
| Nf: | MAD |
| Nfname: | Federation Malgache de Natation |
| Year: | 2017 |
| Flagcaption: | Flag of Madagascar |
| Location: | Budapest, Hungary |
| Competitors: | 4 |
| Sports: | 1 |
| Gold: | 0 |
| Silver: | 0 |
| Bronze: | 0 |
| Appearances: | auto |
| App Begin Year: | 1991 |
Madagascar competed at the 2017 World Aquatics Championships in Budapest, Hungary from 14 July to 30 July.
See main article: Swimming at the 2017 World Aquatics Championships. Madagascar has received a Universality invitation from FINA to send a maximum of four swimmers (two men and two women) to the World Championships.[1]
| Athlete | Event | Heat | Semifinal | Final | ||||
|---|---|---|---|---|---|---|---|---|
| Time | Rank | Time | Rank | Time | Rank | |||
| align=left rowspan=2 | Lalanomena Andrianirina | Men's 200 m backstroke | 2:21.04 | 40 | did not advance | |||
| Men's 200 m individual medley | 2:23.97 | 44 | did not advance | |||||
| align=left rowspan=2 | Heriniavo Rasolonjatovo | Men's 100 m freestyle | 54.70 | 83 | did not advance | |||
| Men's 200 m freestyle | 2:01.00 | 67 | did not advance | |||||
| align=left rowspan=2 | Hantan Raharvel | Women's 50 m freestyle | 28.84 | 65 | did not advance | |||
| Women's 50 m butterfly | 30.89 | 49 | did not advance | |||||
| align=left rowspan=2 | Elodie Razafy | Women's 50 m backstroke | 31.26 | 52 | did not advance | |||
| Women's 100 m backstroke | 1:07.49 | 48 | did not advance | |||||
| Lalanomena Andrianirina Heriniavo Rasolonjatovo Hantan Raharvel Elodie Razafy | Mixed 4 × 100 m freestyle relay | 3:59.39 | 19 | did not advance | ||||