David Taylor Irvine, AO (10 January 1947 – 30 March 2022) was an Australian diplomat who, from March 2009 to September 2014, was the Director-General of Security, the head of the Australian Security Intelligence Organisation (ASIO). Prior to his appointment to ASIO, he was Director-General of the Australian Secret Intelligence Service (ASIS) from 2003 to 2009. In 2017 he was unexpectedly appointed Chair of the Foreign Investment Review Board despite having no professional investment or business experience.