Julia Mary Langdon (born July 1946) is a British journalist and writer. A political journalist since 1971, she became a lobby correspondent in 1974. Leaving The Guardian in 1984, she was appointed political editor of the Daily Mirror, the first woman to hold the position on a national newspaper in the UK. Later, Langdon was political editor of The Sunday Telegraph. Having children, however, was one of the reasons she left the parliamentary lobby in the 1990s.