Sir Frederick Arthur Gore Ouseley, 2nd Baronet (12 August 1825 – 6 April 1889) was an English composer, organist, musicologist and priest.Frederick Ouseley was born in London, the son of Sir Gore Ouseley, and manifested an extraordinary precocity in music, composing an opera (L'Isola disabitata) at the age of eight years. In 1844, having succeeded to the baronetcy, he entered at Christ Church, Oxford, and graduated BA in 1846 and MA in 1849. He was ordained in the latter year, and, as curate of St. Paul's Church, Knightsbridge, served the parish of St. Barnabas, Pimlico until 1851.