Not all of these are mathematical in nature, but many of them are.

Definitions, anecdotes, and limericks about math and mathematicians.

Glass Klein bottles of all types.

Bi-monthly humorous math newsletter featuring interviews with famous mathematicians and scientists. Includes puzzles, limericks, and riddles.

Over 120k of jokes.

Jokes, puns, and limericks having to do with mathematics. Also provides a link to the math humor e-book, Nowhere Dense. Content changes daily.

A collection of math humor links.

A collection of jokes about math and mathematicians.

This newsletter attempts to combine mathematics and humour.

Abbott and Costello's wacky math.