The 2024 United States Senate election in Arizona will be held on November 5, 2024, to elect a member of the United States Senate to represent the state of Arizona. Primary elections will take place on July 30, 2024.

Mark Lamb is an American law enforcement officer and politician who has served as the sheriff of Pinal County, Arizona, since 2017. As a member of the Republican Party, Lamb previously served in the Salt River Pima–Maricopa Indian Community police department.