Birnie may refer to:
- Birnie Island, small uninhabited coral island in the Republic of Kiribati
- Birnie Kirk, Church of Scotland church south of Elgin, in Moray, Scotland
- Birnie Loch, loch in North East Fife, Scotland
People
- David and Catherine Birnie, Australian husband and wife pair of serial killers
- Esmond Birnie, (born 1965), author, economist, and Ulster Unionist Party politician
- George Birnie Esslemont (1860–1917), British Liberal politician
- Harry Charles Birnie, Scottish seaman, captain with the Cunard line and commodore in the Royal Navy Reserve
- John Birnie Philip (1824–1875), English sculptor of the 19th century
- Ted Birnie (1878–1935), professional footballer and manager
- Tessa Birnie (1934–2008), New Zealand-born Australian concert pianist
- William Birnie Rhind (1853–1933), Scottish sculptor