Elwyn (Jack) Lynn (6 November 1917 – 22 January 1997) was an Australian artist, author, art critic and curator.

[1][2] Elwyn Lynn trained as a teacher, and was a schoolmaster in Sydney Secondary schools until 1968 (mainly English and history).

Alongside his career as a painter, which started in the mid-1940s, Lynn was also an outspoken commentator on the visual arts.

[3] Elwyn Lynn's work was striking, with the use of unconventional painting media and expressive surfaces to construct metaphors for human suffering and endurance.

He had over 50 solo exhibitions in Sydney, Newcastle, Brisbane, Melbourne, Adelaide, Perth and Cologne (Germany).