Nyjah Huston -- the #1 skateboarder in the world -- made an amazing wish come true for an 11-year-old shredder ... throwing the kid a private skate party and the pics are AWESOME!
The reigning Street League Skateboarding champ got word that a brave 11-year-old named Jaydon -- who's been battling a severe kidney disorder -- has been dreaming of skating with his hero, Nyjah.
In fact, we're told Jaydon -- who lives in Florida -- is a hardcore skate fanatic who watches skate videos of Nyjah almost every day!
So, the good people at the Make-A-Wish Foundation put the two in touch -- and Nyjah hooked up one of the coolest 1-on-1 skate sessions EVER!