| Ida Karstoft | |
| Nationality: | Danish |
| Sport: | Athletics |
| Event: | Sprinting |
| Birth Date: | 29 October 1995 |
| Show-Medals: | yes |
Ida Kathrine Karstoft (born 29 October 1995) is a Danish athlete.[1] She competed in the women's 4 × 100 metres relay event at the 2019 World Athletics Championships.[2] Karstoft won the bronze medal in the 200 metres at the 2022 European Championships.[3]
Her career as an athlete started as a soccer player in the Danish league, even being selected for two matches for the national Danish Women's soccer team. But during a period of injury her sprinting abilities were discovered during running practice and she transitioned to traditional athletics.