What are the official disney character mascots?

Quick Answer
Mickey Mouse is the official Disney mascot.
Explanation
Mickey Mouse, created by Walt Disney and Ub Iwerks in 1928, serves as the official mascot of the Walt Disney Company and represents the brand worldwide. His iconic image has been used on company logos, merchandise, theme park attractions, and promotional materials since the early days of the studio, establishing him as the face of Disney. In contrast, Tinker Bell, introduced in Disney Animation's 1953 film Peter Pan, has become a widely recognized unofficial mascot. While she is a beloved character and symbol of the "magic of Disney," the company officially designates Mickey Mouse as the primary representative.
Tinker Bell's role as an unofficial mascot stems from her popularity in Disney media and her association with the whimsical, fairy‑tale aspect of Disney storytelling. She appears in numerous Disney productions, including the Peter Pan film and related spin‑offs, and is often featured in marketing that emphasizes enchantment and wonder. However, the company’s corporate branding and official iconography consistently showcase Mickey Mouse as the central emblem.
Thus, when referring to Disney’s official mascot, the correct answer is Mickey Mouse. Tinker Bell is recognized by fans and in marketing contexts but is not officially designated as the mascot by Disney.