| Event: | Water polo |
| Games: | 2018 Asian Games |
| Venue: | Gelora Bung Karno Aquatic Stadium |
| Dates: | 16 August – 1 September 2018 |
| Competitors: | 195 |
| Nations: | 10 |
| Prev: | 2014 |
| Next: | 2022 |
Water polo at the 2018 Asian Games was held at the Gelora Bung Karno Aquatic Stadium, Gelora Bung Karno Sports Complex, Jakarta, Indonesia from 16 August to 1 September.[1] Ten countries with 9 men's team and 6 women's team participated in the competition.[2] [3]
| ● | Round | ● | Last round | P | Preliminary round | ¼ | Quarterfinals | ½ | Semifinals | F | Finals |
| Event↓/Date → | 16th Thu | 17th Fri | 18th Sat | 19th Sun | 20th Mon | 21st Tue | 22nd Wed | 23rd Thu | 24th Fri | 25th Sat | 26th Sun | 27th Mon | 28th Tue | 29th Wed | 30th Thu | 31st Fri | 1st Sat | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| P | P | P | P | P | ¼ | ½ | F | |||||||||||
| ● | ● | ● | ● | ● |
| Men | Pavel Lipilin Yevgeniy Medvedev Ruslan Akhmetov Roman Pilipenko Miras Aubakirov Alexey Shmider Murat Shakenov Altay Altayev Rustam Ukumanov Mikhail Ruday Ravil Manafov Yulian Verdesh Valeriy Shlemov | Katsuyuki Tanamura Seiya Adachi Harukiirario Koppu Mitsuaki Shiga Takuma Yoshida Atsuto Iida Takumu Miyazawa Mitsuru Takata Atsushi Arai Yusuke Inaba Keigo Okawa Kenta Araki Tomoyoshi Fukushima | Omid Lotfpour Peyman Asadi Amir Hossein Rahbar Hamed Malek-Khanbanan Amir Hossein Keyhani Ali Pirouzkhah Amir Dehdari Mehdi Yazdankhah Soheil Rostamian Mohammad Javad Abbasi Arshia Almasi Hossein Khaledi Shayan Ghasemi | |
| Women | Peng Lin Zhai Ying Mei Xiaohan Xiong Dunhan Niu Guannan Guo Ning Nong Sanfeng Zhang Cong Wang Huan Zhang Danyi Chen Xiao Zhang Jing Shen Yineng | Alexandra Zharkimbayeva Oxana Saichuk Aizhan Akilbayeva Anna Turova Anastassiya Yeremina Darya Roga Anna Novikova Sivilya Raiter Shakhzoda Mansurova Zamira Myrzabekova Anastassiya Mirshina Anastassiya Murataliyeva Azhar Alibayeva | Minami Shioya Yumi Arima Akari Inaba Shino Magariyama Chiaki Sakanoue Minori Yamamoto Maiko Hashida Yuki Niizawa Kana Hosoya Misaki Noro Marina Tokumoto Kotori Suzuki Miyuu Aoki |
A draw ceremony was held on 5 July 2018 to determine the groups for the men's competition. The teams were seeded based on their final ranking at the 2014 Asian Games. The women were played in round robin format.[4]