The Online Film Critics Society Award for Best Actress is an annual film award given by the Online Film Critics Society to honor the best lead actress of the year.

Mrs Brown is a 1997 British drama film starring Judi Dench, Billy Connolly, Geoffrey Palmer, Antony Sher, and Gerard Butler in his film debut. It was written by Jeremy Brock and directed by John Madden. The film was produced by the BBC and Ecosse Films with the intention of being shown on BBC One and on WGBH's Masterpiece Theatre. However, it was acquired by Miramax and released to unexpected success, going on to earn over $13 million worldwide.