Ja es ist ein Pseudonym.

Zitat von Britannica:Born Eric Arthur Blair, Orwell never entirely abandoned his original name, but his first book, http://semantic.britannica.com/accepted_headword/core/170437/Down-and-Out-in-Paris-and-London">Down and Out in Paris and London, appeared in 1933 as the work of George Orwell (the surname he derived from the beautiful River Orwell in East Anglia). In time his nom de plume became so closely attached to him that few people but relatives knew his real name was Blair. The change in name corresponded to a profound shift in Orwell’s lifestyle, in which he changed from a pillar of the British imperial establishment into a literary and political rebel.