Leatherhead is a fictional character in the Teenage Mutant Ninja Turtles series. He was created in 1987 by Mirage Studio's artist Ryan Brown, who also went on to create the Saturday morning cartoon series the Wild West C.O.W.-Boys of Moo Mesa for the ABC television network. He is a 13'4" mutated alligator.

a firefighter who recognizes the true meaning of their profession

The leatherhead, is a term used for an old style leather helmet used by some firefighters in the US.

A dolt; a dull or thick-witted fellow. Use it to call someone an idiot. Also an adjective: "a leatherheaded sod."

The friar bird.

Leatherhead is a small town in Surrey, England, on the River Mole, Surrey. It is thought to be of Saxon origin.

an independent food research institute in Europe and provides food information to the international food and drinks industry