Hyperno (1973–2002) was a Thoroughbred racehorse foaled in New Zealand. He was a wayward but brilliant galloper that won the Melbourne Cup and other group and listed races.He was sired by Rangong (GB) out of Mikarla (NZ) by Persian Garden II (GB). He was trained in his early years at Caulfield by Geoff Murphy. A dispute over training methods between Murphy and Hyperno's owners in 1978 led to Bart Cummings taking over as trainer.