Disco fries is an American side dish consisting of thick cut steak fries that are layered with brown gravy and mozzarella cheese, which can sometimes be replaced with grated American cheese. It is believed that this tasty side dish was inspired by the famous Canadian poutine.

Some claim it was invented in the 1970s after a night out in the disco, while others say it only started to appear in the 1990s. Disco fries are still regularly served in New Jersey eateries, and the dish remains popular with tipsy club goers.