Harold Lindsay Badger (10 October 1907 – 13 December 1981) was an Australian jockey, famous for riding the champion racehorse Ajax in many of his wins. Badger was born at Northcote, Melbourne, the third of eight children. Two of his brothers, Clarence and Eric, also became jockeys. Apprenticed at 14 to Richard Bradfield, he often raced in South Australia, winning the Adelaide Cup in 1925. Granted his senior jockey's licence in 1927, he moved to Adelaide and was immediately successful, winning the South Australian jockey's premiership in his first season.