A by-election was held for the Australian House of Representatives seat of Gwydir on 7 June 1969. This was triggered by the resignation of Country Party MP Ian Allan, who had been appointed Secretary-General and regional director of ANZAC war graves in the Pacific Region of the Commonwealth War Graves Commission. As a by-election for the seat of Bendigo had just been called, the two were held on the same day.
The by-election was won by Country Party candidate Ralph Hunt. This remains the most recent federal by-election to be contested by only two candidates.
The Country Party candidate, Ralph Hunt, was the NSW and federal chairman of the party, and a farmer and grazier from northern New South Wales.
The Labor candidate, Roger Nott, was a member of the New South Wales Legislative Assembly for Liverpool Plains, largely located within Gwydir, from 1941 until 1961, and served as a minister in the Cahill and Heffron governments, before being appointed by the Menzies government as Administrator of the Northern Territory.