Sir Arthur Edward Ian Montagu Russell, 6th Baronet, MBE, FRS (30 November 1878 – 24 February 1964), was a British mineralogist of the 20th century. He was a collector and a collector of collections. He was born in Swallowfield Park, near Reading, in Berkshire, the son of Sir George Russell, 4th Baronet and Lady . He was educated at Eton College and studied chemistry at King's College London. He served in France during World War I and was invalided home in 1915.