Isabella Nielsen
Isabella Nielsen is a Danish badminton player.
Achievements
BWF International Challenge/Series
Women's doubles| Year | Tournament | Partner | Opponent | Score | Result |
| 2017 | Norwegian International |  Amanda Madsen | Alexandra Bøje Sara Lundgaard | 19–21, 9–21 | Runner-up |
| 2015 | Norwegian International | Amanda Madsen |  Victoria Dergunova Olga Morozova | 17–21, 12–21 | Runner-up |
| 2015 | Estonian International | Amanda Madsen |  Setyana Mapasa Gronya Somerville | 5–21, 13–21 | Runner-up |
Mixed doubles
| Year | Tournament | Partner | Opponent | Score | Result |
| 2018 | Slovenian International | Kristoffer Knudsen |  Gregory Mairs Jenny Moore | 21–13, 16–21, 14–21 | Runner-up |
| 2018 | Iceland International | Kristoffer Knudsen |  Rohan Kapoor Kuhoo Garg | 21–16, 19–21, 18–21 | Runner-up |
| 2018 | Swedish Open | Kristoffer Knudsen |  Thom Gicquel Delphine Delrue | 16–21, 10–21 | Runner-up |
| 2017 | Polish International | Kristoffer Knudsen | Matthew Clare Victoria Williams | 21–13, 21–15 | Winner |
| 2015 | Hungarian International | Patrick Buhl | Christopher Coles Victoria Williams | 19–21, 21–11, 17–21 | Runner-up |