Moonlight on the Highway is a television play by Dennis Potter, first broadcast in the United Kingdom on 12 April 1969 as part of ITV's Saturday Night Theatre strand.

Al Bowlly obsessive, David Peters (Ian Holm), is visited in his run-down bedsit by Marie (Deborah Grant), a researcher for Severn Television, who is collecting material for a documentary about the singer.

David is enthusiastic about the offer but has other things on his mind; he has an appointment with an NHS psychiatrist the following day and his anxiety about the meeting, coupled with the novelty of entertaining his beautiful visitor, leads him to make an unwelcome pass at her.

As David holds forth in his speech about the beauty and innocence of Bowlly's music his mind wanders back to the sexual assault and, realising he is surrounded by friends whose attitudes to love and sex match his own, reveals that he has slept with 136 prostitutes.

The main character of Moonlight appears to live in Hammersmith and it is established during a montage sequence that the abuse David suffers occurred sometime around VJ Day, as Potter declared his had.

The main action of the drama takes place at Chilton's practice, while other scenes (David's attempt to seduce Marie and the meeting of the Al Bowlly Appreciation Society) are incorporated as flashbacks or flashforwards.

Potter would later use popular music as a means to heighten the dramatic tension in his work in the serials Pennies from Heaven (1978), The Singing Detective (1986), Lipstick on Your Collar (1993) and the play Cream in My Coffee (1980).

The theme of sexual abuse is returned to in Only Make Believe (1973), Brimstone and Treacle (1976), Where Adam Stood (1976), Blue Remembered Hills (1979), Blackeyes (1989), Cold Lazarus (1996) and the novel Hide and Seek (1974).