Adolphe Charles Adam (French: [adolf adɑ̃]; 24 July 1803 – 3 May 1856) was a French composer and music critic. A prolific composer of operas and ballets, he is best known today for his ballets Giselle (1841) and Le corsaire (1856, his last work), his operas Le postillon de Lonjumeau (1836), Le toréador (1849) and Si j'étais roi (1852) and his Christmas carol Minuit, chrétiens! (1844), later set to different English lyrics and widely sung as "O Holy Night" (1847). Adam was a noted teacher, who taught Delibes and other influential composers.
Adolphe Adam was born in Paris, to Jean-Louis Adam (1758–1848), who was a prominent Alsatian composer, as well a professor at the Paris Conservatoire. His mother was the daughter of a physician. As a child, Adolphe Adam preferred to improvise music on his own rather than study music seriously and occasionally truanted with writer Eugène Sue who was also something of a dunce in early years. Jean-Louis Adam was a pianist and teacher but was firmly set against the idea of his son following in his footsteps. Adam was determined, however, and studied and composed secretly under the tutelage of his older friend Ferdinand Hérold, a popular composer of the day. When Adam was 17, his father relented, and he was permitted to study at the Paris Conservatoire—but only after he promised that he would learn music only as an amusement, not as a career. He entered the Paris Conservatoire in 1821, where he studied organ and harmonium under the celebrated opera composer François-Adrien Boieldieu. Adam also played the timpani in the orchestra of the Conservatoire; however, he did not win the Prix de Rome and his father did not encourage him to pursue a music career, as he won second prize.