Knott's Berry Farm is a 57-acre (23 ha) theme park located in Buena Park, California, owned and operated by Cedar Fair. In 2015, it was the twelfth-most-visited theme park in North America and averages approximately 4 million visitors per year. The park features 40 rides including roller coasters, family rides, dark rides, and water rides.

The theme park began in the 1920s as a roadside berry stand run by Walter Knott along State Route 39 in California. By the 1940s, a restaurant, several shops, and other attractions had been constructed on the property to entertain a growing number of visitors, including a replica ghost town. The site continued its transformation into a modern amusement park over the next two decades, and an admission charge was added in 1968. In 1997, the park was sold to Cedar Fair for $300 million, just two years after the Knott's food business was acquired by ConAgra, Inc. in 1995.