John Mead Hallett (9 October 1917 – 9 August 1999) was an Australian politician.

He was active in the Farmers' Union of Western Australia and served a term as general treasurer.

[4] Hallett first stood for the House of Representatives at the 1961 federal election, losing to the Liberal candidate Neil McNeill in the seat of Canning.

[7] Hallett lost his seat to the Liberal candidate Mel Bungey at the 1974 election, running under the National Alliance banner with the joint endorsement of the Country Party and the Democratic Labor Party.

[8] After his defeat, he made a "blistering attack" on the National Alliance, stating it was "probably the biggest mistake in the history of the Country Party" and that he had been "opposed to the idea from the start".