John Stamos and Wife Caitlin McHugh Honeymooning at Disney World's Magic Kingdom

John Stamos and his new bride Caitlin McHugh are honeymooning ... at a spot where the magic happens.

John and Caitlin were spotted at Magic Kingdom -- "The Most Magical Place on Earth" -- at Disney World in Florida Friday night, still rocking the newlyweds look ... along with the iconic Mickey Mouse ears.

It's a fitting vacay for the couple ... they're both huge Disney fans, and John actually proposed to Caitlin at Disneyland in California.

As we reported ... the 2 got married last Saturday at The Little Brown Church in Studio City in a small ceremony, just hours after Caitlin's bungalow was burglarized.