The Wild Geese is a British 1978 film about a group of mercenaries in Africa. It stars Richard Burton, Roger Moore, Richard Harris and Hardy Krüger. The film was the result of a long-held ambition of its producer Euan Lloyd to make an all-star adventure film similar to The Guns of Navarone or Where Eagles Dare.

The film was based on an unpublished novel titled The Thin White Line by Daniel Carney. The film was re-named The Wild Geese after a 17th-century Irish mercenary army (see Flight of the Wild Geese). Carney's novel was subsequently published under that title by Corgi Books.

The novel was based upon rumours and speculation following the 1968 landing of a mysterious aeroplane in Rhodesia, which was said to have been loaded with mercenaries and "an African President" believed to have been a dying Moise Tshombe.

There was some criticism of the movie being filmed in South Africa during the apartheid era. Roger Moore had already been heavily criticised for making two previous films there.