Robert Henry Kennerley Rumford (2 September 1870 – 9 March 1957) was an English baritone singer of the 20th century.

He was first known for his performances of oratorios, but following his marriage to the well-known contralto singer Clara Butt, he toured with her throughout the English-speaking world singing repertoire of a more popular type.

[2] He studied singing in Paris under Giovanni Sbriglia (in 1894) and Jacques Bouhy, and in London under George Henschel.

[2] He made his reputation with works of a serious kind such as Bach's St. Matthew Passion (Bach Festival at Queen's Hall 6 April 1897) and Brahms's Ernste Gesänge (St. James's Hall Popular Concert 31 January 1898).

[2] After his marriage to Clara Butt he performed with her in concerts of a more popular kind – they performed "Grand Concerts" at the Royal Albert Hall in London and in tours all over the English-speaking world.