Mouth to Mouth is a 1978 film directed by John Duigan. It stars Kim Krejus and Sonia Peat. It was nominated for three awards by the Australian Film Institute in 1978.

The film was shot over four weeks in June and July 1977.

Duigan later described it as "in my early period of film-making in Melbourne, the film that I value most. I feel it is closest to what I set out for - and probably was the first film that I got close to achieving what I set out to do."