What fictional burger chain advertises the Big Kahuna Burger in Pulp Fiction?

The fictional burger chain that advertises the Big Kahuna Burger in Pulp Fiction is Big Kahuna Burger.

Big Kahuna Burger is a fictional fast-food brand appearing in several films written or directed by Quentin Tarantino. Its most famous appearance is in Pulp Fiction, where Jules Winnfield discusses and eats a burger from the restaurant during the opening apartment sequence.

The brand is presented as having a Hawaiian-themed identity, reflected in the phrase “Big Kahuna.” The film does not establish a complete real-world menu or restaurant history, because the chain exists only within the fictional universe.

Viewers sometimes confuse Big Kahuna Burger with a real regional chain or with the McDonald’s Quarter Pounder discussed in the same scene. They are separate fictional and real-world references, respectively.