Marialite is a Japanese Thoroughbred racehorse and broodmare. She was slow to mature and did not race until she was three years old when she won two minor races. She finally emerged as a top class performer in 2015 when she won the Grade 1 Queen Elizabeth II Cup. In the following year she recorded her biggest victory when she defeated male opposition to take the Takarazuka Kinen and received the JRA Award for Best Older Filly or Mare.

The Queen Elizabeth II Cup is an International Grade 1 flat horse race in Japan for three-year-old and above thoroughbred fillies and mares run over a distance of 2,200 metres on the turf at Kyoto Racecourse in November.