| Mattias Nilsson | |
| Fullname: | Mattias Nilsson |
| Birth Date: | 1982 2, df=yes |
| Birth Place: | Brunflo, Sweden |
| Disciplines: | Biathlon |
| Club: | JämtBiathlon |
| Wcdebut: | 5 December 2002 |
| Retired: | 27 September 2011 |
| Olympicteams: | 2 (2006, 2010) |
| Olympicmedals: | 0 |
| Worldsteams: | 7 (2003, 2004, 2005, 2006, 2007, 2008, 2009) |
| Worldsmedals: | 0 |
| Wcseasons: | 9 (2002/03–2010/11) |
| Wcwins: | 0 |
| Wcrelayswins: | 2 |
| Wcpodiums: | 2 |
| Wcrelayspodiums: | 6 |
Mattias Nilsson (born 19 February 1982 in Brunflo, near Östersund) is a former Swedish biathlete.[1]
Nilsson retired after the 2010–11 season, announcing on 27 September 2011 his retirement from the sport due to a heart condition.[2]
In May 2018, it was announced that he, from the 2018–2019 season, becomes coach for Team Sweden in men's cross-country skiing together with Johan Olsson and Fredrik Uusitalo.[3]