| Bianca Baak | |
| Birth Date: | 25 January 1992 |
| Birth Place: | Almere, Netherlands |
| Nationality: | Dutch |
| Sport: | Track and field |
| Event: | 400 metres |
Bianca Baak (in Dutch; Flemish biˈɑnkaː baːk/; born 25 January 1992) is a Dutch track and field athlete who specializes in middle-distance running.[1] She represented Netherlands at the 2019 World Athletics Championships, competing in women's 4 × 400 metres relay.[2]