Joy Mangano (/mæŋˈɡænoʊ/ mang-GAN-oh; born February 1, 1956) is an American inventor and entrepreneur known for inventions such as the self-wringing Miracle Mop. She was the president of Ingenious Designs, LLC, and appeared regularly on the U.S. television shopping channel HSN until her departure in late 2018. Mangano is the founder and CEO of Clean Boss, a company that develops and sells cleaning products.

Mangano released her autobiography, Inventing Joy, in 2017. The 2015 film Joy was loosely based on her life. Jennifer Lawrence won a Golden Globe Award for Best Actress – Motion Picture Comedy or Musical and was nominated for the Academy Award for Best Actress for her portrayal of Mangano. A stage musical inspired by her life premiered in 2022, also titled Joy.

In 2021, she premiered a reality competition show on USA Network for aspiring entrepreneurs called America's Big Deal.

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