Robert Spurgeon Bloxom Sr. (April 26, 1937 – December 13, 2020) was an American politician from the Commonwealth of Virginia. He served in the Virginia House of Delegates before becoming Secretary of Agriculture and Forestry. Bloxom was nominated to become the first agriculture secretary for Virginia by Governor of Virginia Mark Warner. When Tim Kaine succeeded Warner as governor, he retained Bloxom in the role. His son Robert Bloxom Jr. was elected to the House of Delegates in 2014. Bloxom died at his home in Mappsville, Virginia, on December 13, 2020, at the age of 83.