For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life.John 3:16 in other translations

The Authorized King James Version is an English translation of the Christian Holy Bible begun in 1604 and completed in 1611 by the Church of England. Printed by the King's Printer, Robert Barker, the first edition included schedules unique to the Church of England; for example, a lectionary for morning and evening prayer. This was the third such official translation into English; the first having been the Great Bible commissioned by the Church of England in the reign of King Henry VIII, and the second having been the Bishop's Bible of 1568. In January 1604, King James I of England convened the Hampton Court Conference where a new English version was conceived in response to the perceived problems of the earlier translations as detected by the Puritans, a faction within the Church of England.

James gave the translators instructions intended to guarantee that the new version would conform to the ecclesiology and reflect the episcopal structure of the Church of England and its beliefs about an ordained clergy. The translation was by 47 scholars, all of whom were members of the Church of England. In common with most other translations of the period, the New Testament was translated from the Textus Receptus (Received Text) series of the Greek texts. The Old Testament was translated from the Masoretic Hebrew text, while the deuterocanonical books were translated from the Greek Septuagint (LXX), except for 2 Esdras, which was translated from the Latin Vulgate.

While the Authorized Version was meant to replace the Bishops' Bible as the official version for readings in the Church of England, it was apparently (unlike the Great Bible) never specifically "authorized", although it is commonly known as the Authorized Version in the United Kingdom. However, the King's Printer issued no further editions of the Bishops' Bible; so necessarily the Authorized Version supplanted it as the standard lectern Bible in parish church use in England. In the Book of Common Prayer (1662), the text of the Authorized Version replaced the text of the Great Bible — for Epistle and Gospel readings—and as such was "authorized" by Act of Parliament.

By the first half of the 18th century, the Authorized Version was effectively unchallenged as the English translation used in Anglican and Protestant churches. Over the course of the 18th century, the Authorized Version supplanted the Latin Vulgate as the standard version of scripture for English speaking scholars.

Throughout most of the world, the Authorized Version has passed out of copyright and is freely reproduced. In the United Kingdom, the British Crown restricts production of the Authorized Version per transitional exemptions from the Copyright Act 1775 (which implemented this clause) in the Copyright, Designs and Patents Act 1988 (Schedule 1, section 13(1)), which expire in 2039. Cambridge University Press, Oxford University Press, HarperCollins and the Queen's Printers have the right to produce the Authorized Version.

The title of the first edition of the translation was "THE HOLY BIBLE, Conteyning the Old Testament, AND THE NEW: Newly Translated out of the Originall tongues: & with the former Translations diligently compared and revised, by his Majesties speciall Comandement".

For many years it was common not to give the translation any specific name. For example, a 1761 "Brief Account of the various Translations of the Bible into English" refers to the 1611 version merely as a new, compleat, and more accurate Translation, despite referring to the Great Bible by that name, and despite using the name "Rhemish Testament" for the Douay-Rheims Bible version.. Similarly, a "History of England", whose fifth edition was published in 1775, writes merely that [a] new translation of the Bible, viz., that now in Use, was begun in 1607, and published in 1611.

King James's Bible is used as the name for the 1611 translation (on a par with the "Genevan Bible" or the "Rhemish Testament") in Charles Butler's Horae Biblicae (first published 1797). Other works from the early 19th century confirm the widespread use of this name on both sides of the Atlantic: it is found both in a "Historical sketch of the English translations of the Bible" published in Massachusetts in 1815,, and in an English publication from 1818, which explicitly states that the 1611 version is "generally known by the name of King James's Bible". This name was also found as King James' Bible (without the final "s"): for example in a book review from 1811. The phrase "King James's Bible" is used as far back as 1715, although in this case it is not clear whether this is a name or merely a description.

The use of Authorized Version or Authorised Version, capitalized and used as a name, is found as early as 1814. For some time before this descriptive phrases such as "our present, and only publicly authorized version" (1783), "our authorised version" (1792), and "the authorized version" (1801, uncapitalized) are found. The Oxford English Dictionary records a usage in 1824. In Britain, the 1611 translation is generally known as the "Authorized Version" today.