Hot Enough for June is a 1964 British spy comedy film directed by Ralph Thomas, and starring Dirk Bogarde with Sylva Koscina in her English film debut, Robert Morley and Leo McKern. It is based on the 1960 novel The Night of Wenceslas by Lionel Davidson. The film was cut by twenty minutes and retitled Agent 8+3⁄4 for the US release by the American distributor Continental Distributing.

Sir Dirk Bogarde was an English actor, novelist and screenwriter. Initially a matinée idol in films such as Doctor in the House (1954) for the Rank Organisation, he later acted in art house films, evolving from "heartthrob to icon of edginess".