Julian Martin Leeser (born 25 May 1976) is an Australian politician, who has represented the Division of Berowra since the 2016 Australian election, succeeding long-serving former MP Philip Ruddock.Between 1995 and 1999, Leeser sat on Woollahra Council.
At the time, he was the youngest local councillor ever elected in Australia.
In 1999 he served as a member of Prime Minister John Howard's No campaign during the republic referendum.
In 2000, he was an associate to Justice Ian Callinan of the High Court of Australia.Leeser worked as an adviser for Minister for Workplace Relations Tony Abbott in 2001 and for Philip Ruddock between 2004 and 2006.
He worked as a solicitor for Mallesons Stephen Jaques between 2002 and 2004.
In 2006 he joined the Menzies Research Centre as Executive Director, before becoming Director of Government Policy & Strategy at the Australian Catholic University in July 2012.Leeser has written several articles defending the legacy of Prime Minister William McMahon, as well as an obituary of his wife Sonia for The Australian.
He authored McMahon's entry in the Australian Dictionary of Biography, and as of 2016 was working on a full-length biography.