What is the name of the restaurant where Remy cooks?

The restaurant where Remy cooks is called Gusteau’s.

Gusteau’s is a Paris restaurant named for the celebrated chef Auguste Gusteau. At the beginning of the film, it is still associated with Gusteau’s famous reputation and motto, “Anyone can cook,” even though Gusteau has died and the restaurant is being run by his former sous-chef, Skinner.

Remy first reaches the restaurant after becoming separated from his rat colony. From the roof, he watches Alfredo Linguini struggle with a ruined soup. Remy sneaks into the kitchen, improves the dish, and eventually begins helping Linguini cook. Their secret partnership allows Remy’s culinary talent to influence the restaurant’s success.

The name can be confused with La Ratatouille, but that is the bistro Remy, Linguini, and Colette open at the end of the film. Gusteau’s is the original restaurant and the main kitchen where Remy’s career begins.