Rathmines School^[1] was a Church of Ireland secondary school in the suburb of Rathmines, Dublin: it opened in 1855 and closed in 1899.^[2] In all 2,190 pupils attended the school.^[3]

The school was located at 48 Lower Rathmines Road. The founder of the school and headmaster for over 40 years was Reverend Dr Charles William Benson.^[4]

• Edward Vaughan Boulger (1846– 11 August 1910), Professor of Classics in the University of Adelaide. Taught at Rathmines c. 1870–1871
• Henry Horatio Dixon FRS^[5] (May 19, 1869, Dublin – December 20, 1953, Dublin) plant biologist and professor at Trinity College Dublin.^[5]
• Evelyn Charles Hodges (8 August 1887 - 18 March 1980)^[6] Bishop of Limerick, Ardfert and Aghadoe, 1943^[7] to 1960^[8] and died on 18 March 1980.^[6]
• John Joly FRS (1 November 1857 – 8 December 1933) physicist and professor of geology at the University of Dublin^[9]
• James Bennett Keene (25 October 1849 – 5 August 1919)^[10]Bishop of Meath from 1897 to 1919
• Septimus Drummond "Sep" Lambert (3 August 1876 in Dublin, Ireland – 21 April 1959 in Dublin)^[11] cricketer.^[12]
• Hugh Jackson Lawlor (11 December 1860 - 26 December 1938) priest^[13] and author^[14]
• Walter Frederick Osborne(17 June 1859 – 24 April 1903) artist^[15]
• Arthur Alcock Rambaut (21 September 1859 - 14 October 1923) astronomer^[16]
• Daniel Frederick Rambaut (6 August 1865 – 30 November 1937) psychiatrist^[17] and rugby player^[18]