Ernest John "Midge" Didham (born 1945 in Mosgiel, New Zealand) is a retired jockey and horse trainer. Midge's father, Arthur, was a top class jockey and trained at Wingatui. Midge was the leading New Zealand jockey in the 1969-70 season with 99 wins. He shifted to Australia after he rode Igloo, trained by his father, to finish second to Silver Knight in the 1971 Melbourne Cup. Some of the major wins during Didham's career include: Didham retired from riding in 1985 and then trained in Melbourne for 20 years.