Water polo at the 2018 Asian Games – Men

The men's tournament of Water polo at the 2018 Asian Games at Jakarta, Indonesia, was held from 25 August to 1 September at the Gelora Bung Karno Aquatic Stadium.

Results
All times are Western Indonesia Time (UTC+07:00)

Group A
 











Group B
 <section begin=B1 /><section end=B1 />

<section begin=B2 /><section end=B2 />

<section begin=B3 /><section end=B3 />

<section begin=B4 /><section end=B4 />

<section begin=B5 /><section end=B5 />

<section begin=B6 /><section end=B6 />

<section begin=B7 /><section end=B7 />

<section begin=B8 /><section end=B8 />

<section begin=B9 /><section end=B9 />

<section begin=B10 /><section end=B10 />

Quarterfinals
<section begin=QF2 /><section end=QF2 />

<section begin=QF3 /><section end=QF3 />

<section begin=QF1 /><section end=QF1 />

<section begin=QF4 /><section end=QF4 />

Classification 5–8
<section begin=R5SF1 /><section end=R5SF1 />

<section begin=R5SF2 /><section end=R5SF2 />

Semifinals
<section begin=SF1 /><section end=SF1 />

<section begin=SF2 /><section end=SF2 />

Classification 7–8
<section begin=CR3 /><section end=CR3 />

Classification 5–6
<section begin=CR4 /><section end=CR4 />

Bronze medal match
<section begin=BM /><section end=BM />

Gold medal match
<section begin=GM /><section end=GM />

Final standing
<section begin=Ranking />