| Magnus Jernemyr | |
| Nationality: | Swedish |
| Birth Date: | 18 July 1976 |
| Birth Place: | Uppsala, Sweden |
| Height: | 2m (07feet) |
| Position: | Pivot |
| Currentclub: | GWD Minden |
| Clubnumber: | 20 |
| Years1: | 1994–2005 |
| Clubs1: | Redbergslids |
| Years2: | 2005–2007 |
| Clubs2: | Torrevieja |
| Years3: | 2007–2008 |
| Clubs3: | GOG Svendborg TGI |
| Years4: | 2008–2013 |
| Clubs4: | FC Barcelona |
| Years5: | 2013–2014 |
| Clubs5: | Lugi HF |
| Years6: | 2014–2017 |
| Clubs6: | GWD Minden |
| Nationalyears1: | 2005–2014 |
| Nationalteam1: | Sweden |
| Nationalcaps1: | 116[1] |
| Nationalgoals1: | 5 |
Magnus Jernemyr (born 18 July 1976)[2] is a Swedish handballer who last played for GWD Minden and the Swedish national team. In 2012, he was selected as Liga ASOBAL's best defender. In that year, he was also part of the Swedish team that won the silver medal at the Olympic Games.