Sir Arthur Kekewich (26 July 1832 – 22 November 1907) was a British Chancery Division judge.
He was the second son of Samuel Trehawke Kekewich.
He received an M.A. from Balliol College, Oxford in 1856, and studied law at Lincoln's Inn. He was called to the bar in 1858 and became Q.C. in 1877, and a bencher of Lincoln's Inn in 1881.
In 1880 he ran unsuccessfully as a Conservative candidate in Coventry, and in 1885 he ran unsuccessfully as the Conservative candidate in Barnstaple.
In 1886, on the occasion of the retirement of Vice-Chancellor James Bacon, he was appointed a judge of the Chancery Division. In 1906, he was appointed to the Privy Council.
In 1858 he married Marianne, daughter of James William Freshfield.
He had an elder brother, Trehawke Kekewich (1823–1909), who was the father of his nephews Sir Trehawke Kekewich, 1st Baronet and Major General Robert Kekewich. He also had a half-brother, George William Kekewich, by his father's second wife. Another nephew, the son of his sister Julia Frances, was Thomas Lewis Kekewich Edge, High Sheriff of Nottinghamshire in 1904.