(小林禮子) Kobayashi Reiko, nee Kitani Reiko (木谷禮子) (23 December 1939 - 16 April 1996), was a Nihon Ki-in professional Go player. 6 dan in 1968, 7 dan posthumously.
Kobayashi liked the 5-4 points. She was the daughter of Kitani Minoru. She married Kobayashi Koichi and was the mother of Kobayashi Izumi.
One of her most famous quotes was: 'Go is a fighting art.'
She won the All-Japan Women's Championship (informally called the Women's Honinbo prior to 1982) half a dozen times, in 1966 to 1971, and the Women's (Old) Meijin twice, in 1973 and 1975.
She died after a battle of over a year with cancer.