Sir Peter Halkett, 2nd Baronet (21 June 1695 – 9 July 1755) was a Scottish baronet who served in the British army and was Member of Parliament for Stirling Burghs from 1734 to 1741. His regiment was posted to North America during the 1754–1763 French and Indian War; he and his youngest son James served in the ill-fated Braddock Expedition and were killed at the Battle of Monongahela, on 9 July 1755.