Mickey Mouse Turns 90! On November 18, Mickey Mouse will turn 90 years old. You may have already seen some merchandise that’s been created to mark this special occasion. If you’re lucky enough to be in a Disney theme park that day, there will be special festivities to mark the day - commemorative merchandise, treats, photo locations and so much more! If you can’t make it to a park, that’s ok. Happy Birthday Mickey!! 90 looks great on you!