Peyton Manning: Post-Budweiser Celebration ... at Disneyland!

Disneyland is the most hungover place on Earth ... if Peyton Manning slammed as many Budweisers as he threatened to after Super Bowl 50.

Peyton and his 4-year-old twins Mosley and Marshall are in Anaheim right now, and hitched a ride with Mickey, Minnie and co. for a victory parade -- his last one at Disney if he decides to retire.

Manning's kids are loving this, but the Broncos QB clearly has only one thing on his mind: Where's the beer??

Hair o' the dog! (No offense, Pluto)