Gary Gene Miller (born October 16, 1948), American politician, has been a Republican member of the United States House of Representatives since 1999, representing California's 42nd congressional district (map). He was born in Huntsville, Arkansas, attended Mount San Antonio College in Walnut, California, and served in the United States Army from 1967 to 1968.

He is a businessman who founded several companies bearing his name, including G. Miller Development, G. Miller Masonry, and G. Miller Framing. At the age of 20, he began his first company, which built single-family and custom homes. His business expanded to the development of planned communities. Miller remains active in real estate through his development company.

Miller and his wife, Cathy, have three sons and one daughter.