Ross Smith Secondary School was a high school in Northfield, South Australia. The original Northfield High School was opened in 1968. The School changed its name to the Ross Smith Secondary School in 1996 as a result of the amalgamation of Nailsworth and Northfield High Schools. The school had classes from Year 8 through to 12. The school's last principal was Judith O'Brien. The motto of the school was "Building a culture of success." The school was named after the aviator, Ross Macpherson Smith in part due to a large pine tree situated on the former oval of the school, thought to have been planted on the site where the Vickers Vimy came to a stop marking the end of the first flight from England to Australia. The tree has been retained and is now part of a small park.