Joseph Ignatius Langtry (2 September 1880 – 30 April 1951) was an Australian politician.

Born in Kyabram, Victoria, he received a primary education before becoming a teamster.

In 1940, he was the Labor candidate for the Australian House of Representatives seat of Riverina; he was successful in this, defeating Country Party member Horace Nock.

He held the seat until 1949, when he was defeated by Country candidate Hugh Roberton.

This article about an Australian Labor Party member of the House of Representatives is a stub.