Rubén L. F. Hábito (born c. 1947) is a Filipino Zen rōshi of the Sanbō Kyōdan lineage.

There, he began practising under Yamada Kōun, a Zen rōshi who taught Christian students, which was unusual for the time.

Ruben subsequently left the Jesuit order in 1989, and in 1991 founded the Maria Kannon Zen Center, a lay organization in Dallas, Texas.

Hábito has been a faculty member of the Perkins School of Theology at the Southern Methodist University since 1989.

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