Joseph Denton "Jay" Miller (May 5, 1922 – March 23, 1996) was a prominent American record producer and songwriter from Louisiana, known for his significant contributions to Cajun, swamp blues, and swamp pop music. Born in Iota, Louisiana, and spending part of his childhood in El Campo, Texas, Miller spent most of his life in Crowley, Louisiana. He began his musical career in the late 1930s, playing guitar with Cajun bands such as the Four Aces and the Rice City Ramblers.

In 1946, Miller started recording Cajun musicians at Cosimo Matassa's studio in New Orleans, founding Fais-Do-Do Records, which he later renamed Feature Records. He recorded notable Cajun musicians like Amidie Breaux and Aldus Roger. Throughout his career, Miller established numerous labels, including Zynn Records and Blues Unlimited Records, to explore various musical genres.

In the 1950s, Miller expanded his repertoire to include swamp pop and swamp blues artists, recording talents such as King Karl, Guitar Gable, and Slim Harpo. His work with Slim Harpo produced iconic tracks like "I'm a King Bee," later covered by the Rolling Stones. Miller also wrote the lyrics for "It Wasn't God Who Made Honky Tonk Angels," a hit for Kitty Wells.

Despite professing segregationist views, Miller utilized interracial studio bands during the Jim Crow era and expressed a deep appreciation for African-American blues music, writing under the pseudonym "Jerry West." However, his legacy is marred by the production of racist recordings in the 1960s on his Reb Rebel label.

Miller's studio in Crowley attracted mainstream artists, including Paul Simon and John Fogerty. He passed away in Crowley on March 23, 1996, after complications from surgery. His contributions to music are recognized by the Jay D. Miller Award from the Louisiana Blues Hall of Fame.