John Peter Richardson III (September 25, 1831 – July 6, 1899) was the 83rd governor of South Carolina from 1886 to 1890. Richardson was born in Clarendon County, South Carolina to John Peter Richardson II, a former Governor of South Carolina, and Juliana Augusta Manning. After graduating from South Carolina College in 1849, Richardson managed Elmswood Plantation in Clarendon County. He was also elected to the South Carolina House of Representatives during antebellum South Carolina. On July 6, 1899, Richardson died in Columbia and was buried at Old Quaker Cemetery in Camden.