Joseph Lachaud de Loqueyssie (1 October 1848 – 17 February 1896) was a French politician who was deputy of Tarn-et-Garonne in 1877–81.

[1] His parents were Pierre Jules Lachaud de Loqueyssie (1815–1883) and Rose Françoise Prax.

[2] He was a captain in the Basses-Alpes Garde Mobile during the Franco-Prussian War, and on 26 November 1870 was wounded during the attack on Dijon.

[3] After the death of his father-in-law, Eugene Gibiat [fr], he directed the Pays and the Constitutionnel.

[7] Joseph Lachaud de Loqueyssie died on 17 February 1896 at the age of 47 in Notre-Dame-de-Sanilhac, Dordogne.