La Mer was a thoroughbred racehorse, who raced from 1976 to 1979. La Mer was sired by Copenhagen II from La Balsa (New Zealand). She was bred by Jack Alexander at Cranleigh Stud in Wanganui and born on Melbourne Cup day in 1973. Later she was sold to Mr L (Allen) Alexander of Wynthorpe Stud, Lepperton. She was trained by Malcolm Smith at Bell Block, New Plymouth. She raced and won 24 times out of 43 starts, as well as second 5 times and third 6 times in 1200m to 2400m, winning NZ$225,925 and AUS$19,500 in stake money.