William Jones Lowndes was an American lawyer, planter, and politician from South Carolina. He represented the state in the U.S. Congress from 1811 to May 8, 1822, when he resigned for health reasons.

Lowndes County is a county located in the south-central portion of the U.S. state of Georgia. As of the 2020 census, the population was 118,251. The county seat is Valdosta. The county was created December 23, 1825.