These are the results of the open water swimming competition at the 2003 World Aquatics Championships, which took place in Barcelona, Spain.

Rank	Nation	Gold	Silver	Bronze	Total
1	Russia (RUS)	3	0	1	4
2	Italy (ITA)	2	0	0	2
3	Netherlands (NED)	1	0	1	2
4	Germany (GER)	0	4	2	6
5	Spain (ESP)	0	1	1	2
6	Czech Republic (CZE)	0	1	0	1
7	Bulgaria (BUL)	0	0	1	1
Totals (7 entries)		6	6	6	18

Event	Gold	Silver	Bronze
5 km details	Evgeni Kochkarov (RUS) 53.11.9	Christian Hein (GER) 53.13.9	Vladimir Dyatchin (RUS) 53.14.8
10 km details	Vladimir Dyatchin (RUS) 1:50.58.8	Christian Hein (GER) 1:51.06.5	David Meca (ESP) 1:51.08.4
25 km details	Yuri Kudinov (RUS) 5:02.20.0	David Meca (ESP) 5:02.20.4	Petar Stoychev (BUL) 5:02.20.6

Event	Gold	Silver	Bronze
5 km details	Viola Valli (ITA) 57.01.2	Jana Pechanová (CZE) 57.03.9	Britta Kamrau (GER) 57.06.4
10 km details	Viola Valli (ITA) 1:59.49.9	Angela Maurer (GER) 1:59.51.1	Edith van Dijk (NED) 1:59.53.0
25 km details	Edith van Dijk (NED) 5:35.43.5	Britta Kamrau (GER) 5:35.46.1	Angela Maurer (GER) 5:35.46.5

• Open Water results section of the 2003 World Championships results from OmegaTiming.com; retrieved 2019-07-18.