James Richard Atkin, Baron Atkin, (28 November 1867 – 25 June 1944), known from 1913 to 1919 as Sir Richard Atkin and also called Dick Atkin, was an Australian-British barrister who served as a judge of the King's Bench division of the High Court of Justice, a justice of the Court of Appeal, and finally as a lord of appeal in ordinary from 1928 until his death in 1944. He is especially remembered as the judge who gave the leading judgement in the 1932 case Donoghue v Stevenson, which established the modern law of negligence in the UK and indirectly in most of the common law world.