Florence Easton (25 October 1882 – 13 August 1955) was an English dramatic soprano of the early 20th century. She was one of the most versatile singers of all time, appearing in more than 100 roles, covering a wide range of styles and periods, from Mozart, Meyerbeer, Gounod, Verdi, Wagner, Puccini, Strauss, Schreker and Krenek. She sang virtually every Wagnerian soprano part, large and small, from Senta in Der Fliegende Holländer onwards, including Brünnhilde in Götterdämmerung.

Easton described herself as a "lyric dramatic soprano", which seems barely adequate in relation to the range and types of roles in which she excelled. Her international reputation, founded mainly in North America and Germany, was almost unique for a British singer of her time. She could move easily through all stages from the light coloratura to the Hochdramatische, from girlish romanticism to the powerful drama of Wagner and Strauss. The voice could be light and airy, gently melancholic or intensely passionate. The involvement in the character of the role was total. John Steane has suggested that "This great strength of hers was also, in a strange way, a source of weakness. She sang so many roles very well that she never quite became identified with any of these". Despite some minor difficulty with Italian diction, she was chosen by Puccini to create Lauretta in his 1917 opera Gianni Schicchi.