John Baptiste Calkin was an English composer, organist and music teacher.
He was born in London on 16 March 1827. He was son of James Calkin (1786-1862), composer and pianist. Reared in a musical atmosphere, he studied music under his father, and his three brothers, Joseph, James, and George, also adopted the profession.
When nineteen he was appointed organist, precentor, and choirmaster of St Columba's College, Dublin, in succession to Edwin George Monk. St. Columba's College was a school mainly for the boys of the upper classes and for candidates for the ministry of the Church of Ireland; music and the Irish language were prominent features in the curriculum. From 1846 to 1853, Calkin zealously maintained a high standard of choral music at St. Columba's, and he cultivated composition. From 1853 to 1863 he was organist and choirmaster ofWoburn Chapel, London; from 1863 to 1868 organist of Camden Road Chapel; and from 1870 to 1884 organist at St. Thomas's Church, Camden Town.