Hugh Enes Blackmore was a British opera and concert singer and actor. Known as the "Iron-Throated Tenor", he is best remembered for his performances of tenor roles with the D'Oyly Carte Opera Company. His career with D'Oyly Carte spanned almost 30 years, ending with a season as the company's stage manager. He was later a teacher of operatic singing and acting.

Utopia, Limited; or, The Flowers of Progress, is a Savoy opera, with music by Arthur Sullivan and libretto by W. S. Gilbert. It was the second-to-last of Gilbert and Sullivan's fourteen collaborations, premiering on 7 October 1893 for a run of 245 performances. It did not achieve the success of most of their earlier productions.