Arthur Hugh Chaplin CB (17 April 1905 – 24 December 1996) was an English librarian who was Principal Keeper of Printed Books at the British Museum.

[4][5][3][6] In 1963, Chaplin was the first non-American recipient of the Margaret Mann Citation in Cataloguing and Classification for ‘his masterly preparation of the Draft Statement of Principles which showed creative insight into universal conditions of bibliographical entry’ and would form the basis of an international agreement reached at the IFLA Conference on Cataloguing Principles held in Paris in 1961.

[8] He was the son of Herbert Frederick Chaplin, a Wesleyan Minister, and his wife, Florence Bessie (née Lusher).

[3] In 1959 he was made Principal Keeper of Printed Books and later took charge of the public services of the British Museum Library.

[4][5][3][6] In 1963, he was the first non-American recipient of the Margaret Mann Citation in Cataloguing and Classification for ‘his masterly preparation of the Draft Statement of Principles which showed creative insight into universal conditions of bibliographical entry’ and would form the basis of an international agreement reached at the IFLA Conference on Cataloguing Principles held in Paris in 1961.