On its premier, it was the highest-rated Disney Channel Original Movie ever. It airs on Disney Channel every St. Patrick's Day.
At about 15 minutes into the movie, one of the graphic designers who worked on the movie gave himself secret credit by adding his name to the yearbook.
Actor Henry Gibson famously played a leprechaun on the Bewitched episode If the Shoe Pinches (1970).
While "The Luck of the Irish" may be the only Disney Channel Original Movie (DCOM) based on Irish culture, before this Disney created other films based on Irish culture like "Darby O'Gill and the Little People" (1959), "The Fighting Prince Of Donegal" (1966), and the Silly Symphonies short "Pigs Is Pigs" (1954).
The carnival scene was filmed at Lagoon theme park in Farmington, Utah.