Helen Landis (born 20 March 1923, Bolton, Lancashire, England – died 22 March 2015, Northwood, London, England) was an English singer and actress. She was known for her performances in musical theatre, operetta and opera, especially roles in early British productions of Rodgers and Hammerstein's and Ivor Novello's musicals and the contralto roles in the Savoy operas with the Gilbert and Sullivan for All company, with whom she toured extensively for more than 20 years.