Pierre Antoine Deblois (October 15, 1815 – June 21, 1898) was a Quebec farmer and politician, a Conservative member of the Senate of Canada for La Salle division from 1883 to 1898.

He was mayor of Beauport before he was named to the Senate in February 1883.

Deblois' nephew, Sir Adolphe-Philippe Caron, was a member of the House of Commons and the cabinet of Sir John A. Macdonald.

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