The Krusty Krab is a fictional fast-food restaurant in the American-based, Nickelodeon, children's cable television series "SpongeBob SquarePants". It is famous for its signature burger, the Krabby Patty, the formula to which is a closely guarded trade secret.

Because of its fame, The Krusty Krab has inspired several real-life establishments unaffiliated with Nickelodeon or its parent company, Viacom. In Santa Elena, Costa Rica, a restaurant called the Krusty Krab opened in 2012 but closed a year later.

In Ramallah, West Bank, a company called Salta Burgers constructed a real-life Krusty Krab, which received online attention. It opened on July 24, 2014,[46] serving seafood and its own version of the Krabby Patty; The restaurant was in operation as of 2017, but was shut down by 2019.

Some commentators, like in the Houston Press noted of these foreign imitations that "The long arm of U.S. trademark law doesn't reach across international waters. Every country has its own filing process that must be followed".

In Moscow, a Krusty Krab-themed restaurant called The Krusty Krab Cafe opened in 2016 and also makes unofficial Krabby Patties. In Davao City, Philippines, a coffee shop opened in 2017 and sells Krabby Patty-inspired sandwiches; it was named KrustyKrub Cafe because the son of its husband-and-wife owners is a fan of the show.

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