John Simon Cockle (29 September 1908 – 3 August 1966) was an Australian politician.

He was secretary of the Australian Steamship Owners' Federation before serving in the military 1941–46 during World War II.

In 1961, he was elected to the Australian House of Representatives as the Liberal member for Warringah.

[1] He held the seat until his death from a heart attack on 3 August 1966.

This article about a Liberal Party of Australia politician is a stub.