The following is a list of awards and nominations received by English actress Helena Bonham Carter.

She received Academy Award nominations for Best Actress for her role as Kate Croy in the period drama The Wings of the Dove (1997), and for Best Supporting Actress for her portrayal of Queen Elizabeth in the historical drama The Kings Speech (2010).

She received a Golden Globe Award for Best Actress – Motion Picture Comedy or Musical nomination for her role as Mrs. Lovett in Sweeney Todd: The Demon Barber of Fleet Street (2007) and a Outstanding Cast in a Motion Picture for her role as Madame Thénardier in the musical Les Misérables (2012).

She received a Golden Globe Award nomination for her television roles portraying Marina Oswald Porter in the NBC film Fatal Deception: Mrs. Lee Harvey Oswald (1993) and Primetime Emmy Award nominations for her roles as Morgan le Fay in the NBC miniseries Merlin (1998), Ingrid Formanek in the HBO movie Live from Baghdad (2002), and Elizabeth Taylor in BBC television film Burton & Taylor (2013).

For her portrayal of Princess Margaret, Countess of Snowdon in the Netflix drama series The Crown she received nominations for two Primetime Emmy Award for Outstanding Supporting Actress in a Drama Series, and two Golden Globe Award for Best Supporting Actress – Series, Miniseries or Television Film as well as two wins for the Screen Actors Guild Award for Outstanding Performance by an Ensemble in a Drama Series.