Lancelot (Launcelot) Bulkeley (1568? – 8 September 1650) was an English archbishop of Dublin.
He was the eleventh and youngest son of Sir Richard Bulkeley of Beaumaris and Cheadle, but the eldest by his second wife, Agnes, daughter of Thomas Needham of Stenton. He was thus half-brother of Sir Richard Bulkeley. He entered at the beginning of 1587, as a commoner, Brasenose College, Oxford, where he proceeded B.A.; he afterwards moved to St. Edmund Hall, where he took his M.A. degree in 1593. On 13 November of the same year he was ordained deacon by Hugh Bellot, bishop of Bangor.
Some years later he became Archdeacon of Dublin, and he was promoted to its see in 1619. Subsequently, he was named by James I a member of the Privy Council. He revived the controversy regarding the primacy of Ireland, and on the question being submitted to Thomas Wentworth, Lord Deputy of Ireland, the precedency was given to the Archbishop of Armagh. At Christmas 1628 he was involved in an unsuccessful attempt to prohibit the public celebration of the Roman Catholic Mass. When the news reached the city there was a large scale riot, and a mob stoned Bulkeley, who had to seek refuge in a private house; to his outrage, Dublin Corporation refused to take any steps to assist him and refused admission to the troops sent by the Crown to quell the riot.