August Thomle (6 June 1816, Arendal – 24 June 1889) was a Norwegian judge and politician. He was born in Arendal, Norway, as the son of Erich Andreas Thomle and his wife, Mette Maria, née Binneballe. His brother, Iver Steen Thomle, became a jurist and politician. August Thomle married twice: in 1845 and 1860. In his first marriage, with Helene Marie Fredrikke Binneballe (1820–1851), he had one son: , an archivist. In his second marriage, to Cornelia Kraft, he had the sons Carl Sophus Thomle, attorney, and , civil servant.