Ian Doric Glachan (15 September 1934 – 20 April 2005) was an Australian politician. He was a Liberal Party of Australia member of the New South Wales Legislative Assembly from 1988 to 2003, representing the electorate Albury. He was subsequently elected Mayor of the Greater Hume Shire in 2005, but died suddenly the next month.
Glachan attended Sydney Boys High School, graduating in 1947. He worked as a marine engineer, farmer, and businessman, as well as serving in the Royal Australian Air Force and as an officer in the Australian Merchant Navy.
In 1984 he stood as the Liberal candidate for Albury, but was defeated by sitting member Harold Mair of the Australian Labor Party. Glachan stood again in the 1988 election and won. He actually won enough of a swing to turn Albury into a safe Liberal seat in one stroke, largely due to the Nationals' preferences flowing overwhelmingly to him. Glachan became chairman of the Parliament's Public Accounts Committee, and served as member for Albury until 2003 when he was succeeded by Greg Aplin. On March 2005 he was elected to the newly created Greater Hume Shire Council, and became its first mayor at the inaugural meeting on 16 March 2005.
Ian Glachan was actively involved in the restoration of his local church building the Anglican Church at Jindera. He was the founding secretary of a committee that established the Trinity Anglican College and a wing at the Thurgoona campus was named after him. Glachan was presented with Rotary International's Paul Harris Fellowship, given to members who donate $1000 US. He served as a Justice of the Peace and as chairman of the Albury's Mercy Hospital building appeal.