Arthur Balfour, 1st Baron Riverdale GCB (9 January 1873 – 7 July 1957), known as Sir Arthur Balfour, 1st Baronet, from 1929 to 1935, was a British steel manufacturer.
Balfour was the son of Herbert Balfour. He was Chairman of Arthur Balfour & Co Ltd and of C Meadows & Co Ltd, both of Sheffield, Yorkshire, and also served as President of the Association of British Chambers of Commerce from 1923 to 1924 and of the British Council from 1947 to 1950 and as Chairman of the Advisory Council for Scientific and Industrial Research from 1937 to 1957. He chaired the Committee on Industry and Trade from 1924 to 1928. He was appointed a Knight Commander of the Order of the British Empire in 1923, created a Baronet of Sheffield in the County of York in 1929, and raised to the peerage as Baron Riverdale, of Sheffield in the County of York, on 27 June 1935. In 1942 he was even further honoured when he was appointed a Knight Grand Cross of the Order of the British Empire.
Lord Riverdale married Frances Josephine, daughter of Charles Henry Bingham, in 1899. He died in July 1957, aged 84, and was succeeded in his titles by his eldest son Robert. Lady Riverdale died in 1960.