William Harry Turton (1856–1938) was an English military officer in the Royal Engineers who made notable contributions to late nineteenth-century hymnody. Writing under the signature "R. E." (Royal Engineers) and published through The Church Printing Company in London, he issued three series of A Few Hymns written by A Layman between 1880 and 1883, each collection containing twelve original pieces.

His compositions received significant attention within Anglican hymnody and were included in major collections, such as the Altar Hymnal (1884) and the 1889 Supplemental Hymns to Hymns Ancient & Modern.

Among his most enduring works are:

• "Thou, Who at Thy first Eucharist didst pray" (originally "O Thou who at Thy Eucharist didst pray"): A widely adopted hymn for Christian unity and Holy Communion. It was first used at St. Mary Magdalene's, Munster Square, London, during the Anniversary Service of the English Church Union on June 22, 1881. Intended originally to be sung following the Agnus Dei at a choral celebration, it gained international use and has been translated into multiple languages.

• "And now our Eucharist is o'er": A Holy Communion dismissal hymn written between 1881 and 1882.

• "Behold! the star is shining": An Epiphany hymn featured in the Altar Hymnal (1884).

Turton's hymns are recognized for their liturgical suitability and expression of Eucharistic devotion.