Sir John Ellerman, 2nd Baronet

Sir John Reeves Ellerman, 2nd Baronet (21 December 1909 – 17 July 1973) was an English shipowner, natural historian and philanthropist. The only son and heir of the English shipowner and investor John Ellerman, he was often said to be Britain's richest man. His sister was the writer Bryher.

Life John Reeves Ellerman was educated at Malvern College, where as a teenager he wrote an anti-sport novel, Why Do They Like It?, under the pseudonym E. L. Black. He read for the bar at the Inner Temple before entering his father's shipping business.

Ellerman was twenty three when his father died in July 1933. His father's estate was assessed for probate at £36.685 million, almost three times the previous record set in the United Kingdom, of which he received around £20 million. He promptly married his Canadian girlfriend, Esther de Sola, daughter of Clarence I. de Sola, of whom his father had disapproved.

Shortly before his death he had transferred 79% of the shares in Ellerman Lines Ltd to grant-making trusts: The Moorgate Fund, established 1970, and The New Moorgate Fund, established 1971, were amalgamated as The John Ellerman Foundation in 1992. However, after adjusting for inflation, his estate was worth less than he had inherited.

Ellerman had no children.

Works The families and genera of living rodents, 1940 (vol. 1), 1941 (vol. 2) Checklist of Palaearctic and Indian mammals, 1758–1946, 1951 Southern African mammals, 1758–1951: a reclassification, 1953