Loreto Kirribilli is an independent Catholic comprehensive single-sex primary and secondary day school for girls, located in Kirribilli, a Lower North Shore suburb of Sydney, New South Wales, Australia.

Established at Milsons Point in 1901, Loreto has a selective enrolment policy and currently caters for approximately 1,142 girls from Kindergarten to Year 12.^[3]

The school is affiliated with the Association of Heads of Independent Schools of Australia (AHISA),^[4] the Junior School Heads Association of Australia (JSHAA),^[5] the Alliance of Girls' Schools Australasia (AGSA),^[6] and is a member of the Association of Heads of Independent Girls' Schools (AHIGS).^[7]

Loreto Kirribilli is one of many schools around the world established by the Institute of the Blessed Virgin Mary, or Sisters of Loreto, founded some 400 years ago by Mary Ward.

Its Sydney sister school is Loreto Normanhurst, and there are five other Loreto schools across Australia, in Melbourne, Ballarat, Victoria, Adelaide, Brisbane and Perth, as well as other international schools such as St Mary's Shaftesbury and Saint Mary's Ascot in the UK.

Loreto Kirribilli was founded in 1901 following the move of the day school of Loreto Randwick (founded 1892) to Kunimbla, a house in Milsons Point. In 1907, increasing enrolments necessitated a move to Fern Hill, a house in Upper Pitt Street, and in 1907 to the current site in Carabella Street.^[8]

Elamang, a home owned by early settler James Milson (1785-1872), was purchased in 1907 with the financial assistance of Sarah Heaton, mother of, Philomena Heaton (Institute of the Blessed Virgin Mary (IBVM)), a founding member of the Kirribilli community. This purchase allowed for boarders and an increase in day students. Adjacent properties were purchased over the years, including Coreena (previously owned by Alfred Milson) in 1921, The Hermitage in 1924, Thoms in 1952, and Araluen in 1975. The Loreto Kirribilli Chapel Tower was the highest point on the Kirribilli Peninsula for many years and remains a landmark dominating the skyline when viewed from Neutral Bay. Once the junior school, The Hermitage, was demolished in 1936 to make way for a playing field and tennis courts, and Coreena was replaced in 1961 by the present junior school. Government funding in the 1960s allowed for the building of St Joseph's wing, including science rooms and a library. This was also an era of significant growth in student numbers.^[8]

The boarding school began its phasing out period in 1968, following an explosion which destroyed St Mary's (Thoms). Loreto's last boarding students left in 1972. In 1980, Araluen, which had previously been a music centre, was extended to provide accommodation for the Loreto Sisters, and the community areas in the Elamang building were converted for use as staff rooms, general school administration and music.^[8]

In 2010, Loreto acquired the neighbouring Tremayne Private Hotel, formerly a Y.W.C.A.^[9] and renamed it the Marian Centre.

The newly renovated Loreto library was opened in July 2013. The library contains over 27 000 books and resources.^[10] The library is located at the top of the Saint Joseph's (J) Block. At the 2013 Spring Fair the library raised $3 000 for their sister school in Panighatta by selling handmade book related jewellery, in a stall named 'Read-Cycled'.

• List of Catholic schools in New South Wales
• Catholic education in Australia
• Head of the River (New South Wales)