Bob's Big Boy

Bob's Big Boy is a casual dining restaurant chain founded by Bob Wian in Southern California in 1936, originally named Bob's Pantry. The chain's signature product is the Big Boy hamburger, which Wian created six months after opening his original location. Slicing a bun into three slices and adding two hamburger patties, Wian is credited with creating the original double-decker hamburger.

When Wien began franchising his restaurant across the United States in 1940s, he only required franchisees to use "Big Boy", and omit his name "Bob's". The chain then changed hands several times after Wien sold it in 1967. It was eventually purchased by a group of Michigan investors in 2018, renaming the chain's parent company Big Boy Restaurant Group.