Blue Spec was an Australian Thoroughbred racehorse who established a new record in winning the Melbourne Cup in 1905.

[1] His sire, True Blue (NZ) was a good racehorse, winning the Carrington Stakes and the Waverley Handicap carrying 9 st 9 lb (61.3 kg) as a four-year-old.

Blue Spec had carried Connolly's red and white colours to the start of an amazing five consecutive and two later wins in the Perth Cup, with different horses, for his owner.

[4] The Melbourne Cup was the next target and Blue Spec was taken to trainer, Walter Hickenbotham's stables in Victoria in 1904 with this in mind.

Blue Spec's victory in the Melbourne Cup was the trainer's fourth success in this important race.