Frank James Butterfield (14 February 1936 – 29 June 2007), was a Canadian computer programmer, author, and television personality known for his work with early microcomputers.

[4][10] His reputation as a speaker and educator grew, and people would drive hundreds of kilometres to early TPUG meetings to hear him speak.

[6] Butterfield gave speeches at science conferences and computer expos around the world;[9][11] in Europe he was hailed as the "Commodore Pope".

[12] In 1983, Butterfield appeared as the resident expert in the TVOntario educational series The Academy; the show served as a companion to Bits and Bytes, for which he was already the main source of technical content and author of the accompanying resource book.

[15] For those who could not attend in person, Butterfield accepted telephone calls every day from 10:00 A.M. to 10:00 pm, receiving hundreds of questions every week.

[6][19] Butterfield's only commercially marketed program was SpellPro, a spell checker for Steve Punter's popular WordPro word processor.

Memorials were held at the Naval Club of Toronto on 22 September, including a tribute video by computer historian Syd Bolton,[15][23] and at the World of Commodore 2007 expo on 1 December.

[2][4] His wife, Vicki Butterfield, was not a computer enthusiast, but was an active Rhinoceros Party member who ran for office in Toronto.