Walter Arthur Copinger FSA FRSA (14 April 1847 – 13 March 1910) was an English professor of law, antiquary and bibliographer.

In 1866 he was admitted a student of the Middle Temple, and after spending a short time in the chambers of T. Bourdillon, a well-known conveyancing counsel, he was called to the bar on 26 January 1869.

[2] In 1870 Copinger settled in Manchester, and commenced practice as an equity draughtsman and conveyancer, and in the chancery court of the county palatine of Lancaster.

In 1872 appeared an exhaustive Index to Precedents in Conveyancing; and in 1875 Title Deeds, their Custody and Production of other Documentary Evidence at Law and Equity.

[2] He contributed papers to the Transactions of the Bibliographical Society, including a monograph on the fifteenth-century printed editions of Virgil.

In 1892 he published a folio volume on Incunabula Biblica, a bibliographical account of 124 editions of the Latin Bible printed between 1450 and 1500.

At his Manchester residence, The Priory, Greenheys, he set up a small press, at which he printed for private circulation four volumes: 1.

1884), in which he traces the descent of his family from the Danes in the tenth century, when they appear to have settled in Suffolk and in the south of Ireland.

1907), which was severely criticized for its dependence upon inauthentic sources,[3] and wrote Heraldry Simplified, which appeared in the year of his death.

[4] His interest in theology was broad, and the work which he valued most of his own writings was a lengthy treatise from his pen on Predestination, Election, and Grace (1889).

His other theological writings were: Testimony of Antiquity ... being a Reprint of the Homily by Elfric, edited by himself, 1877; Thoughts on Holiness, Doctrinal and Practical, 1883; Contributions to Hymnody, 1886; The Bible and its Transmission, 1897; a new translation of Imitatio Christi, 1900; and William Law's Serious Call adapted to the Requirements of the Present Day, 1905.

[2] Copinger played several instruments, including the pianoforte and violin, and found time to compose a number of musical pieces, amongst which is a collection of seventy-five original hymn tunes.

[2] On 3 September 1873 Copinger married Caroline Agnes, eldest daughter of Thomas Inglis Stewart, vicar of Landscove, Devon.