Magnus Ehrner (b. 1952), Swedish actor who voiced Bert in Bert och Ernie på äventyr and the second run of Sesam.

Since 1983 he has been employed at the Swedish national theater, Dramaten. SOme of his many stage credits include Julius Caesar, the Tin Man in The Wizard of Oz, Macbeth, Claudio in The Taming of the Shrew, and Herr Schultz in Cabaret.

Other voice credits include Bob the Builder, Mousehunt, Dwight in Free Willy and Free Willy 2.