Immanuel College is a Lutheran school in Novar Gardens, Adelaide, South Australia – a co-educational day and boarding school from Year 7 to 12, offering the International Baccalaureate Middle Years Programme. Established in 1895, the college is a school of the Lutheran Church of Australia. It is the only Lutheran college in Adelaide that has boarders. Its sister schools include Johann-Sebastian-Bach-Gymnasium in Windsbach, Germany and Kyushu Lutheran College in Kumamoto, Japan.

Immanuel College was founded by Pastor Georg Leidig in 1895 at Point Pass (north of Eudunda, east of the Clare Valley^[3]), before its subsequent move to North Adelaide in 1921.^[4]

During WWII, the buildings were required by the air force, and the college was forced to temporarily move to North Walkerville for the period 1942–1946.^[5] Pastor Leidig's eldest son Paul taught there from 1950 until 1956.^[4] In 1949, land at Novar Gardens was acquired from the Morphett family property 'Cummins', and the school was eventually established there in 1957.^[5]

Cummins House was sold to the state government in 1977, and Immanuel College leased that property for five years from 1982 to 1987.^[6][7]

Immanuel College is a member of the Sports Association for Adelaide Schools (SAAS), and the Independent Girls Schools Sports Association (IGSSA).

The Margaret Ames Centre, named after an old scholar and ex-teacher, was opened in 2015 as the senior school for students in Years 10, 11 and 12. It includes classrooms, study areas, a cafe called "Wings Cafe" (based on the Immanuel logo of a dove), and a university style theatre called "The Otto Theatre". It has library access and has 4 floors. It is a modern looking building unattached from the old style of the middle school. The Margaret Ames Centre cost $14.9m AUD at the time of construction.^[10]

The Discovery Centre, named after the Year 10 course 'Discovery' was opened in May 2023 as a building primarily for the use of Year 10 students. The building is two stories and contains ten classrooms, two staff office spaces, two sound proof study spaces, upstairs study cubicles, a downstairs collaborative study space, two downstairs presentation areas, a green screen room, and a podcasting room. It is connected to the Margaret Ames Centre through an upstairs bridge, which also links it to the Library, Middle School, Art Centre and Music Practice Rooms. Year 10 lockers surround the discovery centre on the southern and western sides. The building continues the modern style of the Margaret Ames Centre. The building cost approximately $13.5 million. The Discovery Centre was specifically designed to house the new 'Discovery Year' of Year 10 at Immanuel. The Discovery Program began in 2023 with a host of different elective subjects that offer more creative and expression-based experiences, such as 'The Joy of Painting', 'Podcasting', 'The Edit: Filmmaking'. As well as newer, innovative subjects such as 'On The Money', 'Beyond the Sidelines: The Art of Coaching', and 'Agribusiness'. The new Discovery course is focused on self-expression and self improvement.

Immanuel has a long history of boarding, commencing with its inception as an exclusively boarding school at Point Pass in 1895. In the 21st century, Immanuel has boarding facilities for both males and females. In 2019 the college has beds for 170 students, accommodation is in a main double storey building, self-contained units and eight fully equipped houses. The houses are named after the word for "Peace" in various languages – Heiwa, Pengon, Tangokorro, Frieden, Shalom, Koinonia, Sama and Rahu.

• List of schools in South Australia
• List of boarding schools in Australia
• List of Lutheran schools in Australia