"Cowboy Casanova" is a country song by American singer Carrie Underwood. The song was written by Mike Elizondo, Brett James, and co-written by Underwood herself. It was released on September 14, 2009, by Arista Nashville as the lead single from her third studio album, Play On. The song sold 2,300,000 copies, making it the fourth-biggest single of her career behind "Jesus, Take the Wheel", "Before He Cheats", and "Blown Away".

The song received positive reviews from critics and became the fastest climbing country single of 2009. It also became Underwood's eighth number one country single in the United States. The single was certified Platinum by the Recording Industry Association of America (RIAA) on January 1, 2010.

After the end of her "Carnival Ride Tour", in February 2009, Underwood began writing songs for her new album Play On. She collaborated with a number of producers which included Brett James, one of the three co-writers of her hit single "Jesus, Take the Wheel", and Mike Elizondo, who had collaborated with Eminem and Dr. Dre. Elizondo came up with the main melody of the song, to which James and Underwood set the lyrics. James then suggested the title "Cowboy Casanova" off a list of potential titles that he had, and the lyrics talk about a male character who is a "devil in disguise." In an interview with CMT Underwood said,

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