The Strange World of Mr. Mum was a surreal humor comic panel by Irving Phillips which was published from May 5, 1958, to 1974.

Mum is described as a "bystander on life's outer limits," and the feature's "anything-can-happen" humor paved the way for later titles like Herman, The Far Side, Bizarro and Rhymes With Orange.

Dutch comics historian Ger Apeldoorn noted that Mr. Mum was "one of the weirdest of the silent strips (excluding the Dutch masterpiece from the same period, Professor Pi by Bob van der Born).

Mr. Mum is a curious man in a weird world, who never gets involved but only observes with ever growing amazement.

"[4] After the feature ceased publication, Phillips created a few dozen large, full-color paintings based on ideas from the comic series.