Lawless Heart is a 2001 British film directed by Tom Hunsinger and Neil Hunter. It had its world premiere at the Locarno Film Festival, where it won the Prix CICAE / Arte. It also won Best Screenplay at the British Independent Film Awards in 2002, where it was additionally nominated for Best British Independent Film, Best Director, Best Actor (Bill Nighy) and Best Technical Achievement (editor Scott Thomas). At the Evening Standard British Film Awards the next year, it was awarded Best Screenplay.

The film is set amidst the coastal marshes around Maldon, Essex. The film's structure was inspired by Eric Rohmer's Les Rendez-vous de Paris.