Gunnar Ronstrom

Gunnar Vilhelm Ronstrom (January 25, 1884 – July 5, 1941) was a Swedish track and field athlete who competed in the 1906 Summer Olympics, in the 1908 Summer Olympics, and in the 1912 Summer Olympics.

In 1906 he finished fifth in the high jump competition and seventh in the long jump event. In the 100 metres competition he was eliminated in the first round.

Two years later he finished tenth in the long jump event.

In 1912 he participated in the decathlon competition but retired after four events.