Sir Edmund Grimani Hornby (29 May 1825 – 17 November 1896) was a leading Italian British judge, with family interests in diamond-rich Antwerp.

In 1853, he was appointed a commissioner of Mixed British and American Commission settling outstanding individual claims between Britain and the USA.

Hornby was asked by the Foreign Office to write a report on the exercise of extraterritorial judicial powers in Turkey by consuls who had no legal training or background.

This was accepted and on 27 August 1857, at the age of 32, Hornby was appointed Judge of the British Supreme Consular Court at Constantinople.

[5] In 1865, Hornby was appointed Chief Judge of the newly established British Supreme Court for China and Japan in Shanghai.

He also wrote a pamphlet for the Peace Preservation Society, advocating the establishment in Switzerland of a school or faculty of international law to be kept up jointly by the Powers.