Sven "X-et" Leonard Erixson was a Swedish painter and sculptor, and was one of the Swedish artists who in 1932 started focusing on color and shape as subjects.

He was son of the merchant Alfred Eriksson and Mathilda Eriksson. He was married to Ingeborg Erixson, and they had two children; a son, the artist Sverre Erixson (born 1932) and a daughter, the actor Irma Erixson (born 1937).

Erixson went the long way as an artist. He started as an apprentice to a master painter at age 14 and trained as a professional. Then, he continued his education by studying decorative painting, while he took a drawing teacher at the Konstfack, University College of Arts, Crafts and Design. This was followed a year of study at the Royal Swedish ...