Sir Ernest Thomas Fisk (8 August 1886 – 8 July 1965) was an English Australian businessman and entrepreneur, TV and radio engineer, he was the founder (1913) and later managing director (1916) and chairman (1932) of AWA. In 1944 was appointed managing director of the EMI music empire.

Born the second child of Thomas Harvey Fisk and Charlotte Harritte Holland, he was educated at local Australian schools, although also enrolled at the United Kingdom College, a private London coaching college, he subsequently attended the University of Sydney in 1917, to do a diploma course in the Department of Economics and Commerce.

In June 1906, Fisk joined the Marconi Training School, and at Liverpool and Chelmsford, learnt morse code and wireless technology, qualifying as a radio operator and engineer.

Fisk from selling newspapers, graduated in engineering in the works of Frederick Walton, before becoming one of the first telegraphists at the British Post Office.

from 1909 he worked at American Marconi, demonstrating wireless technology

When first visiting Australia in mid-1910 he demonstrated the Marconi Apparatus for the Orient Steam Navigation Company.

22 September 1918 he proved the possibility of direct radio communication from the UK to Australia by Billy Hughes and Sir Joseph Cook, receiving the first such message at his Sydney home, "Lucania". A memorial was erected on 14 December 1935 to celebrate the achievement.

In August 1919, Sydney received its first demonstration of radio telephony.