Anthony Lefroy (1800 – 12 January 1890) was an Irish Conservative Party MP in the United Kingdom Parliament. He was born in Dublin, the eldest son of politician and jurist Thomas Langlois Lefroy, was educated at Trinity College and studied law at the King's Inns (1820) and Lincoln's Inn (1822). He died at Carrickglass in 1890. He had married the Hon. Jane King, daughter of Robert King, 1st Viscount Lorton. They had one son, who predeceased him, and two daughters. His estates passed to his brother, Thomas, who himself died the next year.