Shà Âhaku Okumura (, born June 22, 1948) is a Japanese Sà Âtà  Zen priest and the founder and abbot of the Sanshin Zen Community located in Bloomington, Indiana, where he and his family currently live. From 1997 until 2010, Okumura also served as director of the Sà Âtà  Zen Buddhism International Center in San Francisco, California, which is an administrative office of the Sà Âtà  school of Japan.
Shà Âhaku Okumura was born in Osaka, Japan in 1948. He received his education at Komazawa University in Tokyo, Japan, where he studied Zen Buddhism. On December 8, 1970, Okumura was ordained at Antaiji by his teacher Kà Âshà  Uchiyama, where he practiced until Uchiyama retired in 1975.
Following Uchiyama's wishes, Okumura traveled to the United States where he co-founded Valley Zendo in Massachusetts and continued Uchiyama's style of zazen practice there until 1981. In that year, he returned to Japan and began translating the writings of Uchiyama and Eihei Dà Âgen from Japanese into English. He spent some time teaching at Kyoto Sà Âtà  Zen Center.
After returning to the United States, Okumura was a teacher at the Minnesota Zen Meditation Center in Minneapolis, Minnesota from 1993 to 1996 and then founded the Sanshin Zen Community in 1996.
Okumura's daughter, Yoko Okumura, made a short documentary film entitled Sit described as "a film about purpose in life, seen through the eyes of a Buddhist monk and his son." The film explores parts of Okumura's way of thinking, how his views affected his parenting and the results this had on Yoko and her brother Masaki, with a strong focus on Masaki.
Okumura attributes his desire to become a Buddhist to the discovery of a book while he was in high school called Self (, ) by Kà Âshà  Uchiyama, who would become his teacher not long after. After Okumura became a teacher in his own right, his message remained much the same as Uchiyama's and is centered around the practice of zazen, largely to the exclusion of other rituals associated with the tradition. Okumura also focuses on the translation of the works of Eihei Dà Âgen and associated texts into English, as well as aiding his students in the study of such writings. His practice of zazen is built on what Uchiyama called "sesshin without toys". These sesshins of three, five, or seven days are completely silent and consist of fourteen hours of zazen each day, punctuated only by meals and sleep in the evening. There are no services, chants, or work periods. These alternate with " retreats", which are five days of intensive study of one or more fascicles of Dà Âgen's collection of writings called the Shà Âbà Âgenzà Â. He has published several translations of material previously unavailable in English such as Dà ÂgenâÂÂs Pure Standards for the Zen Community and Eihei Kà Âroku, both with Taigen Dan Leighton.