| Line Ellertsen | |
| Nationality: | Norwegian |
| Birth Date: | 1998 6, df=y |
| Birth Place: | Stavanger, Norway |
| Height: | 1.74 m |
| Position: | Centre/right back |
| Currentclub: | Storhamar HE |
| Clubnumber: | 23 |
| Years1: | –2015 |
| Clubs1: | Sola HK |
| Years2: | 2015–2017 |
| Clubs2: | Glassverket IF |
| Years3: | 2017–2019 |
| Clubs3: | Sola HK |
| Years4: | 2019–2022 |
| Clubs4: | Aarhus United |
| Years5: | 2022– |
| Clubs5: | Storhamar HE |
Line Ellertsen (born 4 June 1998)[1] is a Norwegian handball player for Storhamar HE.
She also represented Norway at the 2016 Women's Youth World Handball Championship, placing 4th[2] and at the 2015 European Women's U-17 Handball Championship, placing 11th.[3]