Birdo is a fictional pink dinosaur in some of Nintendo's Mario games. She (or he, it is debated by by fans and players if Birdo is really female or male or bisexual, but is suggested to be female) made her first apperance in 1988 in Super Mario Brothers 2 as an enemy boss. In 1995 she later appeared on in Super Mario RPG. Her other main apperance is on the Nintendo 64, in Mario Tennis.

In 2003, Birdo is back, in Mario Kart: Double Dash, a new Gamecube version of the Mario racing game.