Maura "Soshin" O'Halloran (May 24, 1955 - October 22, 1982) was an Irish Zen Buddhist monk.

[1] She is known for her book Pure Heart, Enlightened Mind, which was posthumously published, and for being one of the "first of few Western women allowed to practice in a traditional Japanese Zen monastery".

[2] O'Halloran was born in Boston, Massachusetts in 1955 and her parents moved to Ireland when she was four years old.

[3] Shortly after her graduation O'Halloran travelled to Japan, where she studied to become a Zen monk at Toshoji in Tokyo and at Kannonji in the Iwate Prefecture.

[3] On November 18, 1979, O'Halloran contacted and went to the Toshoji Temple where she met the master at the time, Tetsugyu Soin Ban, who she respected with the honorific title "Go-Roshi.