Ernst Oscar Rosell (3 December 1881 – 26 July 1953) was a Swedish sport shooter who competed in the 1908 Summer Olympics.
In 1908 he won the gold medal in the team running deer, single shots event.In the 1908 Summer Olympics he also participated in the following events:
running deer, double shots - eighth place
running deer, single shots - eleventh place
1000 yard free rifle - 46th place