Simchah Roth (died 2012) was an Israeli rabbi and a scholar who edited the first prayer book of the Masorti movement.
[1][2] Roth moved to Israel in 1969, serving as the rabbi and resident lecturer of the WUJS Institute in Arad and later taught in the town of Yeroham.
In 1989, Roth moved to Herzliyya, where he served as the rabbi of Torat Hayyim Masorti Congregation from 1989 until his retirement from that position in July 2007.
He is known for his attempts to reconcile four characteristics in this prayer book namely - Masorti (Conservative), Israeli-Zionist, pluralistic, and innovative.
According to the analysis of David Ellenson, Roth's prayer book claims that "the demands of the past are not absolute, nor is Jewish liturgical tradition frozen.