Safe Horizon is a 1945 radio play by Jon Cleary.
It won equal first prize in an ABC writing competition (alongside Alexander Turner's The Neighbours), out of 234 entries. The play helped launch Cleary's career as a professional writer.
The production was repeated later in the year. Cleary adapted the play into a short story which was published in a 1946 collection of Cleary's stories, These Small Glories.
A group of Australian soldiers try to escape Greece during World War Two, including the cynical Sg McLaglen; Thomson, a truck driver; Beal, an English nurse; and a Greek girl picked up by the escaping party.