James W. Sturr Jr. is an American polka musician, trumpeter, clarinetist, saxophonist and leader of Jimmy Sturr & His Orchestra. Media outlets have often dubbed him the "King of Polka," with his recordings having won 18 out of the 24 Grammy Awards given for Best Polka Album. Sturr's orchestra is on the Top Ten List of the All-Time Grammy Awards, and has acquired more Grammy nominations than anyone in the history of musical polka awards.

Polka is a dance and genre of dance music originating in nineteenth-century Bohemia, now part of the Czech Republic. Though associated with Czech culture, polka is popular throughout Europe and the Americas.