Dennis Patrick Mullins (August 22, 1938 – May 28, 2017) was an American insurance salesman and served as chairman of the Republican Party of Virginia.
Born in St. Albans, West Virginia, Mullins received his BA from Columbia University, where he served as sports editor of the college daily newspaper, the Spectator, and a JD from George Washington University. He had four children with his wife Jackie, who died in 2010.
Mullins unsuccessfully ran for a position on the Fairfax County Board of Supervisors in 1979 and 1987. He served as chairman of the Fairfax County Republican Committee from 1990 to 1996. After moving to Louisa County, he served as the chairman of the Louisa County Republican Committee from 2008 to 2009, after which he was elected as chair of the Republican Party of Virginia.
Mullins was elected as temporary party chairman on May 2, 2009, to replace Jeff Frederick, who had been fired as chairman in April. He was elected as full-time chairman to serve the remainder of Frederick's term on May 30, 2009, and was re-elected in 2012.
Mullins died on May 28, 2017 in a car accident in Hanover County, Virginia. He was 79 years old and lived in Bumpass, Virginia.