Maeve Dermody (mayv DUR-mə-dee; born 2 November 1985) is a UK-based Australian actress. After a film appearance at 5 years old, her adult acting career has included work in Australian and British television, theatre, short films, and movies.

While still in high school, Dermody began getting roles in Australian television series such as All Saints (1998), and in short films. Her first major film role was in the independent thriller Black Water (2007), which earned her multiple nominations for Best Supporting Actress awards in the Australian film industry.

Her next major film role was in Beautiful Kate (2009), for which she was again nominated for the AFI Best Supporting Actress Award.

She had a lead role in the 2010 film Griff the Invisible, and in the 2012 miniseries Bikie Wars: Brothers in Arms. In 2013, Dermody starred as Claire Simpson in the 10-part Australian-Singaporean TV drama series Serangoon Road. In Christmas 2015, Dermody starred as Vera Claythorne in BBC One's version of Agatha Christie's thriller And Then There Were None.

She is also active in the Australian theatre, having appeared in productions such as Killer Joe, Measure for Measure, Our Town, and The Seagull, for major theatre companies in Sydney.