Sir August Friedrich Manns (12 March 1825 – 1 March 1907) was a German-born conductor who made his career in England. After serving as a military bandmaster in Germany, he moved to England and soon became director of music at London's Crystal Palace. He increased the resident band to full symphonic strength and for more than forty years conducted concerts at popular prices. He introduced a wide range of music to London, including many works by young British composers, as well as works by German masters hitherto neglected in England. Among his British protégés were Arthur Sullivan, Charles Villiers Stanford, Hubert Parry, Hamish MacCunn, Edward Elgar and Edward German.
Manns performed the works of more than 300 composers, and was reckoned to have given more than 12,000 concerts during his tenure at the Crystal Palace, between 1855 and 1901. He became a British citizen in 1894 and was knighted in 1903.
Manns was born at Stolzenberg, Prussia (now Biskupia Górka, part of the city of Gdańsk in Poland). His father was a glass-blower, with, as Manns recalled, "a pound a week and ten children," of whom August was the fifth. The family was musical, and the young August learnt to play the flute in the family's informal ensemble. At the age of ten, August temporarily took the place of one of his brothers at the factory, but he had no liking for the work of glass-blowing. His father briefly considered that August might be trained for a career as a schoolmaster, but the youth's predisposition for music prevailed. At the age of twelve he was sent to a school, kept by his uncle, at a neighbouring village. Here he was trained to play the flute, clarinet and violin. At fifteen he was apprenticed for three years to Urban, the town musician of Elbing, with whom Manns learnt to make the best of limited orchestral forces, transposing and switching instrumental parts as necessary. In his third year Manns played first violin in the string-band and first clarinet in the wind-band of Urban's Town-band; and he was selected by Urban to receive special lessons in harmony and composition.