Lizard men first officially appeared as part of the original D&D game in the 1975 Greyhawk supplement booklet authored by Gary Gygax and Robert Kuntz.
The Mareten (humans), Gauri (dwarves), Drauga (orcs), Haroun (elves), Slaan (lizardfolk), Undead, and Shadow have Kohan that resemble them, although supposedly all Kohan originally appeared human.