Einar Nilsson (8 June 1891 – 22 February 1937) was a Swedish track and field athlete who competed in the 1912 and 1920 Summer Olympics.

[3] Nilsson was selected to represent Sweden in his home Olympics in 1912 in Stockholm.

He entered the pentathlon, decathlon and two varieties of shot put and discus throw.

He failed to complete his decathlon program but placed fourth-tenth in the throwing events.

Nilsson held national records in the shot put and discus throw, becoming the first Swede to break the 40 m barrier.