| Sebastian Karlsson | |
| Fullname: | Sebastian Carl Percy Karlsson |
| Birth Date: | 21 January 1995 |
| Birth Place: | Gothenburg, Sweden |
| Nationality: | Swedish |
| Height: | 1.78 m |
| Position: | Right wing |
| Currentclub: | Montpellier Handball |
| Clubnumber: | 2 |
| Youthyears1: | –2012 |
| Youthclubs1: | IK Sävehof |
| Years1: | 2012–2013 |
| Clubs1: | BM Gades |
| Years2: | 2013–2023 |
| Clubs2: | IK Sävehof |
| Years3: | 2023– |
| Clubs3: | Montpellier Handball |
| Nationalyears1: | 2023– |
| Nationalteam1: | Sweden |
| Nationalcaps1: | 4 |
| Nationalgoals1: | 15 |
Sebastian Carl Percy Karlsson (born 21 January 1995) is a Swedish handball player for Montpellier Handball and the Swedish national team.[1] [2]