Hawaiian pizza is a pizza that usually consists of a cheese and tomato base with pieces of ham and pineapple. Often versions will have mixed peppers, mushrooms and bacon.
Pineapple as a pizza topping divides opinion: Hawaiian was the most popular pizza in Australia in 1999, accounting for 15% of pizza sales, and a 2015 review of independent UK takeaways operating through Just Eat found the Hawaiian pizza to be the most commonly available. A 2016 survey of US adults however had pineapple in the top three least favourite pizza toppings, behind anchovies and mushrooms.
In the 2010 reboot of Hawaii Five-O, the character Danny Williams rants to Steve McGarrett about how "pizza and pineapple do not belong in the same airspace".
In the 2015 animated film Inside Out, after seeing a slice of broccoli and goat cheese pizza, the character Anger shouts "Congratulations, San Francisco, you ruined pizza! First the Hawaiians, and now you!"
In 2017 the President of Iceland suggested lightheartedly that pineapple as a pizza topping should be banned by law.