| Games: | World Aquatics Championships |
| Nf: | DEN |
| Nfname: | Danish Swimming Union |
| Year: | 2023 |
| Flagcaption: | Flag of Denmark |
| Location: | Fukuoka, Japan |
| Competitors: | 6 |
| Sports: | 2 |
| Gold: | 0 |
| Silver: | 0 |
| Bronze: | 0 |
| Appearances: | auto |
Denmark is set to compete at the 2023 World Aquatics Championships in Fukuoka, Japan from 14 to 30 July.
See main article: High diving at the 2023 World Aquatics Championships.
| width=115 | Athlete | width=125 | Event | Points | Rank |
|---|---|---|---|---|---|
| Annika Bornebusch | Women's high diving | 188.10 | 20 |
See main article: Swimming at the 2023 World Aquatics Championships. Denmark entered 5 swimmers.[1]
| Athlete | Event | Heat | Semifinal | Final | ||||
|---|---|---|---|---|---|---|---|---|
| Time | Rank | Time | Rank | Time | Rank | |||
| align=left rowspan=2 | Helena Rosendahl Bach | 100 metre butterfly | 58.55 | 15 Q | 58.54 | 16 | Did not advance | |
| 200 metre butterfly | 2:07.57 | 1 Q | 2:07.15 | 5 Q | 2:07.15 | 5 | ||
| Emilie Beckmann | 50 metre butterfly | 26.43 | 21 | Did not advance | ||||
| align=left rowspan=2 | Thea Blomsterberg | 100 metre breaststroke | 1:08.08 | 26 | Did not advance | |||
| 200 metre breaststroke | 2:23.41 | 3 Q | 2:23.19 | 5 Q | 2:22.42 | 5 | ||
| align=left rowspan=2 | Signe Bro | 100 metre freestyle | 54.61 | 15 Q | 53.94 | 11 | Did not advance | |
| 200 metre freestyle | 1:59.33 | 25 | Did not advance | |||||
| align=left rowspan=3 | Julie Kepp Jensen | 50 metre freestyle | 24.79 | 10 Q | 24.70 | 10 | Did not advance | |
| 50 metre backstroke | 28.77 | 30 | Did not advance | |||||
| 50 metre butterfly | 26.36 | 20 | Did not advance | |||||
| Signe Bro Julie Kepp Jensen Emilie Beckmann Helena Rosendahl Bach | freestyle relay | 3:41.21 | 14 | Did not advance | ||||
| Julie Kepp Jensen Thea Blomsterberg Helena Rosendahl Bach Signe Bro | 4 × 100 m medley relay | 4:03.33 | 14 | Did not advance | ||||