The open water swimming events at the 2023 World Aquatics Championships were held from 15 to 20 July 2023 at the Seaside Momochi Beach Park in Fukuoka, Japan.^[1][2][3]

Five events were held.^[4]

All times are local (UTC+9).

  *   Host nation (Japan)

Rank	Nation	Gold	Silver	Bronze	Total
1	Germany	4	0	1	5
2	Italy	1	1	1	3
3	Hungary	0	2	0	2
4	Australia	0	1	1	2
5	Netherlands	0	1	0	1
6	Brazil	0	0	1	1
	United States	0	0	1	1
Totals (7 entries)		5	5	5	15

Event	Gold		Silver		Bronze
5 km details	Florian Wellbrock  Germany	53:58.0	Gregorio Paltrinieri  Italy	54:02.5	Domenico Acerenza  Italy	54:04.2
10 km details	Florian Wellbrock  Germany	1:50:40.3	Kristóf Rasovszky  Hungary	1:50:59.0	Oliver Klemet  Germany	1:51:00.8

Event	Gold		Silver		Bronze
5 km details	Leonie Beck  Germany	59:31.7	Sharon van Rouwendaal  Netherlands	59:32.7	Ana Marcela Cunha  Brazil	59:33.9
10 km details	Leonie Beck  Germany	2:02:34.0	Chelsea Gubecka  Australia	2:02:38.1	Katie Grimes  United States	2:02:42.3

Event	Gold		Silver		Bronze
Team details	Italy Barbara Pozzobon Ginevra Taddeucci Domenico Acerenza Gregorio Paltrinieri	1:10:31.2	Hungary Bettina Fábián Anna Olasz Kristóf Rasovszky Dávid Betlehem	1:10:35.3	Australia Chelsea Gubecka Moesha Johnson Nicholas Sloman Kyle Lee	1:11:26.7

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