Australia at the 2017 World Aquatics Championships
Australia competed at the 2017 World Aquatics Championships in Budapest, Hungary from 14 to 30 July.
Diving
Australia has entered 10 divers.;Men
;Women
;Mixed
High diving
Australia qualified two female high divers.| Athlete | Event | Points | Rank |
| Rhiannan Iffland | Women's high diving | 320.70 | |
| Helena Merten | Women's high diving | 267.35 | 7 |
Open water swimming
Australia has entered five open water swimmers| Athlete | Event | Time | Rank |
| Jack Brazier | Men's 10 km | 1:52:32.8 | 17 |
| Jack Brazier | Men's 25 km | 5:16:35.0 | 21 |
| Jack McLoughlin | Men's 5 km | 55:04.1 | 22 |
| Chelsea Gubecka | Women's 10 km | 2:00:30.0 | 9 |
| Chelsea Gubecka | Women's 25 km | 5:28:41.6 | 9 |
| Kareena Lee | Women's 5 km | 59:28.9 | 10 |
| Kareena Lee | Women's 10 km | 2:02:08.1 | 19 |
| Kiah Melverton | Women's 5 km | 59:27.5 | =7 |
| Kareena Lee Kiah Melverton Jack Brazier Jack McLoughlin | Mixed team | 54:42.9 | 4 |
Swimming
;Men;Women
;Mixed
Synchronized swimming
Australia's synchronized swimming team consisted of 12 athletes.;Women
Legend: = Reserve Athlete
Water polo
Australia qualified both a men's and women's teams.Men's tournament
;Team roster- Edward Slade
- Timothy Putt
- George Ford
- Joe Kayes
- Nathan Power
- Lachlan Edwards
- Jarrod Gilchrist
- Aaron Younger
- Andrew Ford
- James Fannon
- Lachlan Hollis
- Nicolas Brooks
- Anthony Hrysanthos
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;Playoffs
;Quarterfinals
;5th–8th place semifinals
;Seventh place game
Women's tournament
;Team roster- Lea Yanitsas
- Keesja Gofers
- Hannah Buckling
- Bronte Halligan
- Isobel Bishop
- Amy Ridge
- Rowie Webster
- Jessica Zimmerman
- Joe Arancini
- Lena Mihailovic
- Morgan Baxter
- Madeleine Steere
- Lilian Hedges
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;Playoffs
;Quarterfinals
;5th–8th place semifinals
;Seventh place game