Allan Leigh Lawson (born 21 July 1945) is an English actor, director and writer.

Lawson was born in Atherstone, Warwickshire. He initially studied at Mountview Academy of Theatre Arts^[1] before training further at the Royal Academy of Dramatic Art, Lawson has acted in film and television since the early 1970s, and has directed plays in the West End and on Broadway. He has worked with the National Theatre, Royal Shakespeare Company (RSC) and with film directors such as Roman Polanski and Franco Zeffirelli. He has been quoted as saying that the only time in his career when he didn't feel he should be somewhere else doing something else was when he was with the RSC.^[2] Lawson's portrayals in films include Bernardo in Brother Sun, Sister Moon (1972) and Alec d'Urberville in Tess (1979). He played the leading role as Alan Lomax in the television drama series Travelling Man (1984–85), and guest starred in television series such as The Duchess of Duke Street (1976), Disraeli (1978), Feuer und Schwert - Die Legende von Tristan und Isolde (1982), The Ray Bradbury Theatre (1988) and Silent Witness (2005–2007). He also guested, with his wife Twiggy, playing themselves in an episode of the comedy series, Absolutely Fabulous (2001).

In 1999 Lawson co-wrote and directed the musical If Love Were All, which tells of the friendship between Gertrude Lawrence and Noël Coward. The Dream: An Actor's Story, a theatrical memoir about the day-to-day life of a working actor, was published in September 2009. (ISBN 978-1-84002-867-6)

• Ivan Kaliayev, The Price of Justice, Mermaid Theatre, London, (1972).
• A Touch of Spring, with Hayley Mills, Comedy Theatre, London's West End, (1975–78).
• Aubrey Tanqueray, The Second Mrs. Tanqueray, Royal National Theatre (1981).
• Louis Dubedat, The Doctor's Dilemma, Greenwich Theatre, London, 1981
• Amnon, Yonadab, directed by Peter Hall, Royal National Theatre (1985).
• Antonio, The Merchant of Venice in London's West End and on Broadway (1989).
• Oberon, A Midsummer Night's Dream, produced by Adrian Noble, Royal Shakespeare Company, (1990).
• Loveless, The Relapse, Royal Shakespeare Company, (1996).
• Marc, Art, London's West End and UK Tour, (2002).
• Lloyd, Noises Off, London's West End and on Broadway (2003).
• Death and the Maiden, King's Head Theatre, London (2004).
• Nicholas Nickleby, Chichester Festival Theatre, (2006).
• Shoreditch Madonna, with Francesca Annis, Soho Theatre, (2006).
• Messerschmann, Ring Round the Moon, Playhouse Theatre, London, (2008)

• If Love Were All, (1999), opened off-Broadway at the Lucille Lortel Theatre with Twiggy as Gertrude Lawrence and Harry Groener as Noël Coward, written by Sheridan Morley & Leigh Lawson, directed by Leigh Lawson.^[8]
• The Restaurant, New York
• The Cherry Orchard, US^[9]
• Death and the Maiden, King's Head Theatre, Islington, (2004)
• Jack and the Beanstalk, Pantomime, Brighton Theatre Royal, (2005), starring Twiggy