| Dates: | 17–29 July |
| Num Teams: | 16 |
| Confederations: | 5 |
| Venues: |  Hungary |
| Cities: | Budapest |
| Count: | 2 |
| Matches: | 48 |
| Goals: | 871 |
| Top Scorer: | Ioannis Fountoulis (23 goals) |
| Player: | Márton Vámos |
| Previous: | Water polo at the 2015 World Aquatics Championships – Men's tournament |
| Next: | Water polo at the 2019 World Aquatics Championships – Men's tournament |
The men's water polo tournament at the 2017 World Aquatics Championships, organised by the FINA, was held in Budapest, Hungary from 17 to 29 July 2017.[1] [2]
Croatia captured their second title by defeating host Hungary 8–6 in the final match. Bronze was secured by Serbia who beat Greece 11–8.[3]
| width=15% | Africa | width=15% | Americas | width=15% | Asia | width=20% | Europe | width=15% | Oceania |
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The draw resulted in the following groups:
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| width=40 | Rank | width=180 | Team |
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| 4 | |||
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| 16 |
| Team Roster Marko Bijač, Marko Macan, Loren Fatović, Luka Lončar, Maro Joković, Ivan Buljubašić, Ante Vukičević, Andro Bušlje, Sandro Sukno, Ivan Krapić, Anđelo Šetka, Xavier García, and Ivan Marcelić Head coach: Ivica Tucak. |
| 1 | Ioannis Fountoulis | 23 | 55 | 42 |
| 2 | Sandro Sukno | 16 | 28 | 57 |
| Márton Vámos | 32 | 50 | ||
 Seiya Adachi | 37 | 43 | ||
| 5 |  Andrija Prlainović | 15 | 30 | 50 |
| 6 | Dénes Varga | 14 | 31 | 45 |
 Francesco Di Fulvio | 42 | 33 | ||
| 8 |  Mehdi Marzouki | 13 | 34 | 38 |
| Vincenzo Renzuto | 29 | 45 | ||
 Sergey Lisunov | 27 | 48 | ||
| Daniil Merkulov | 30 | 43 |
Viktor Nagy – Goalkeeper Francesco Di Fulvio Andrija Prlainović Márton Vámos