Kevin Mullin (born June 15, 1970) is an American politician serving as the U.S. representative for California's 15th congressional district since 2023. A member of the Democratic Party, he served as a member of the California State Assembly from the 22nd district, which encompasses most of the San Francisco Peninsula region, from 2012 to 2022.

Mullin is the son of Gene Mullin, who served three terms in the Assembly. Before being elected to the Assembly in 2012, he was an entrepreneur and served on the city council of South San Francisco, including one year as mayor. He served as speaker pro tempore of the Assembly from 2014 to 2022.

Mullin was born in Daly City, California, on June 15, 1970. He attended public and Catholic elementary schools before graduating from Junípero Serra High School in 1988. He received a bachelor's degree in communications from the University of San Francisco in 1992, and a master of public administration from San Francisco State University in 1998. Additionally, Mullin completed an executive leadership program at Harvard University's Kennedy School of Government in 2003.

Before entering politics, Mullin was a local business owner and district director to then-state senator Jackie Speier. He also served as political director for his father, then-state assemblymember Gene Mullin.

As an entrepreneur, Mullin founded KM2 Communications, a multimedia production business in South San Francisco. He produced public affairs programming on local television and hosted various programs on Peninsula-TV Channel 26.

Mullin was elected to the South San Francisco City Council in 2007. He served one term on the council, including a one-year stint as mayor.

During his time on the council, Mullin also represented the cities of San Mateo County on the Metropolitan Transportation Commission.

Mullin was first elected to the Assembly in 2012. He represented the 22nd district, which encompassed most of the San Francisco Peninsula.