The Oka Sho (桜花賞) is a Japanese Grade 1 flat horse race in Japan.

The race is restricted to three-year-old Thoroughbred fillies and is run over a distance of 1,600 metres (approximately 1 mile) at Hanshin Racecourse in Takarazuka, Hyōgo.

Run in early April, it is the traditional start to the annual classic races for three-year-olds in Japan.

Winners of the Oka Sho usually go on to contest the Yushun Himba and the double has been completed by Sweet Sue (1952), Yamaichi, Miss Onward, Kane Keyaki, Tesco Gaby, Titania, Mejiro Ramonu, Max Beauty, Vega, Still In Love, Buena Vista, Apapane, Gentildonna, Almond Eye and Daring Tact.

Still In Love, Apapane, Gentildonna and Almond Eye went on to take the Shuka Sho and secure the Japanese Fillies' Triple Crown.