Latham Augustus Withall OBE (1853 - 1925) was a British architect who practised in Adelaide, South Australia from 1876 to 1888. While in Adelaide he was for a time in partnership with Ernest Bayer, then with Alfred Wells.Work with Wells included the Adelaide Arcade and in 1885, and the Jubilee Exhibition Building in 1886. After Withall and his family returned to England in 1888, Wells and the firm designed the new (1892) Stock Exchange Building, and the Angas and Allen Campbell Buildings of the Adelaide Children's Hospital.