Joanna Roth (born Joanna Angelis; 1965) is a Danish-British actress. She trained at the Royal Academy of Dramatic Art (RADA) and has appeared in film, TV, video games and theatre, in roles such as Ophelia in the film Rosencrantz & Guildenstern Are Dead.

She is married to the Scottish actor John Hannah. She appeared with her husband in the BBC One drama series New Street Law, ITV's Rebus, the film Sliding Doors, and onstage at London's Bush Theatre in A Bright Light Shining. She provided the voice of Aveline Vallen in Dragon Age II.