Shehimo (Syriac: ܫܚܝܡܐ‎, Malayalam: ഷഹീമോ; English: Book of Common Prayer, also spelled Sh'himo) is the West Syriac Christian breviary of the Syriac Orthodox Church and the West Syriac Saint Thomas Christians of India (Syro-Malankara Catholic Church, Malankara Jacobite Syrian Church, Malankara Orthodox Syrian Church, Marthoma Syrian Church and Thozhiyur Church) that contains the seven canonical hours of prayer. The Shehimo includes Bible readings, hymns and other prescribed prayers from the West Syriac Liturgical system. Within the breviary there are certain prayers that are recited at seven fixed prayer times, while facing the east at home or at church. The Shehimo also provides communal prayers as an introduction to the Holy Qurbono. The practice of praying during the canonical hours has its roots taken from Psalm 119:164, in which the prophet David prays to God seven times a day. The Shehimo breviary can be prayed either by reading or chanting the prose or singing the verses. The different versions of the breviary are available in Syriac, Malayalam, English, among other languages.

The Shehimo is considered a treasury of Syriac Christianity, dating back all the way to the 4th century. Traditionally, the early texts were originally in Syriac only but, with the work and translations of the late Mr. C. P. Chandy, the prayers were made available in Malayalam while still preserving the original Syriac meter. In the 1960s, Fr. Bede Griffiths of Kurisumala Ashram translated an English prose version of the Pampakuda edition Shehimo which was the only English Shehimo version existing among the Syrian scholars. This 2016 version of the Shehimo is a versified edition of the two works by a team of theologically trained individuals in America. Baby Varghese writes, "This publication is a first attempt at the English versification stemming from these individuals' love for the Syriac liturgy." There are currently no active attempts at a revision.The Ministry of Liturgical Resource Development (LRD) helps with translations and publications of liturgical books like the Shehimo and Service Book of Holy Qurbono

The seven hours of prayers begin the day before with Ramsho (Evening) and end the day of with Tsha' sho'in (9th Hour), following the definition of a day in the Christian Bible (cf. Genesis 1:5).

At the beginning of the week, which is Sunday, believers participate in the public celebration of the Holy Qurbono. The Holy Qurbono or divine liturgy remembers the birth, baptism, public ministry, crucifixion, death, resurrection, ascension and second coming of Christ. The overarching theme for Sunday is celebrating the Resurrection of Christ. The themes for the remaining days of the week are as follows.

Worshipers pray the Shehimo at seven fixed prayer times every day, corresponding to the number of canonical hours in the breviary. They pray while facing the eastward direction; towards an altar or Iconostasis. This tradition is derived from the book of Psalms 119:164 in the Bible.

The vast majority of the people who use the Shehimo books have learned the songs and prayers of the Shehimo at an early age, from their church life and daily family prayers at home. Before beginning each hour of Shehimo prayers, one must wash their hands and face in order to be clean before and present their best to God; and their shoes are removed in order to acknowledge that one is offering prayer before a holy God. In this Christian tradition, and in many others as well, it is customary for women to wear a head covering or shawl when praying.

The offices used in the Shehimo, with the exception of Sunday and major feast days (Christmas, Easter, etc.) all involve prostrating; prostrations are done [1] thrice during the Qaumo prayer, at the words "Crucified for us, Have mercy on us!", [2] thrice during the recitation of the Nicene Creed at the words "And was incarnate of the Holy Spirit...", "And was crucified for us...", & "And on the third day rose again...", as well as [3] thrice during the Prayer of the Cherubim during "Blessed is the glory of the Lord, from His place forever!"

Members of the Mar Thoma Syrian Church (Reformed Syrians), pray the Shehimo seven times a day, omitting the Hail Mary prayer and intercession to saints, veneratory prayers are regarded optional and said following the recitation of the Qaumo.