Ruth M. Tabrah (February 28, 1921 – April 8, 2004), was an American writer and ordained Buddhist minister.
Ruth Tabrah was born in Buffalo and studied at the University at Buffalo. Most of her life was spent in Hawai'i, living first on the Big Island and later in Honolulu. She was an ordained minister at Honpa Hongwanji Hawaii Betsuin and became an authority on the history of Buddhism in Hawai'i. She served as the president of the Hawai'i Association of International Buddhists and was active in Buddhist community events, such as obon, hanamatsuri and other festivals.
Tabrah was a prolific author, writing on a wide range of topics. Her work included children's books, novels about immigration to the United States, and non-fiction about the history of Japan and the Hawaiian Islands. Hawaii: A History was published in 1984. Her 1995 novel, The Monk Who Dared, is based on the life of Japanese Buddhist sage Shinran Shonin, founder of the Jodo Shinshu school of Buddhism.