Michael William Balfe (15 May 1808 – 20 October 1870) was an Irish composer, best-remembered for his opera The Bohemian Girl.
After a short career as a violinist, Balfe pursued an operatic singing career, while he began to compose. In a career spanning more than 40 years, he composed at least 29 operas, almost 250 songs and other works. He was also a noted conductor, directing Italian Opera at Her Majesty's Theatre for seven years, among other conducting posts.
Balfe was born in Dublin, where his musical gifts became apparent at an early age. He received instruction from his father, a dancing master and violinist, and the composer William Rooke. His family moved to Wexford when he was a child. Between 1814 and 1815, Balfe played the violin for his father's dancing-classes, and at the age of seven composed a polacca.
In 1817, he appeared as a violinist in public, and in this year composed a ballad, first called "Young Fanny" and afterwards, when sung in Paul Pry by Madame Vestris, "The Lovers' Mistake". In 1823, upon the death of his father, the teenaged Balfe moved to London and was engaged as a violinist in the orchestra of the Theatre Royal, Drury Lane. He eventually became the leader of that orchestra. While there, he studied violin with Charles Edward Horn and composition with Charles Frederick Horn, the organist, from 1824, at St. George's Chapel, Windsor.
While still playing the violin, Balfe pursued a career as an opera singer. He debuted unsuccessfully at Norwich in Carl Maria von Weber's Der Freischütz. In 1825, Count Mazzara took him to Rome for vocal and musical studies and introduced him to Luigi Cherubini. Balfe also pursued composing: in Italy, he wrote his first dramatic work, a ballet, La Perouse. He became a protégée of Rossini's, and at the close of 1827, he appeared as Figaro in The Barber of Seville at the Italian opera in Paris.