John Blackley (6 Jan 1862 - 10 Mar 1952) was a member of the Queensland Legislative Assembly.

[1] Blackley was born in Scotland, and came to Australia as a young man.

He stood as the Country and Progressive National Party candidate at the 1929 Queensland state election, but was beaten by Labor's David Weir.

[5] Weir died three months later and Blackley won the resulting by-election in October of that year, defeating Labor's Kerry Copley.

[5] He represented the electorate until the 1932 Queensland state election when he was defeated by James Stopford of the Labor Party.