| Thekla Brun-Lie | |
| Fullname: | Thekla Charlotte Knudtzon Brun-Lie |
| Nationality: | Norwegian |
| Birth Date: | 2 September 1992 |
| Birth Place: | Oslo, Norway |
| Disciplines: | Biathlon |
| Club: | SK Njård |
| Show-Medals: | no |
Thekla Charlotte Knudtzon Brun-Lie (born 2 September 1992) is a Norwegian former biathlete.
She competed at the 2018 IBU Open European Championships in Italy, where she won a gold medal in Single mixed relay along with Vetle Sjåstad Christiansen.[1]
Her sister Celine Brun-Lie is an international cross-country skier.