SJA may refer to: St John Ambulance, several organisations St. Joseph Academy (St. Augustine, Florida), USA The Sarah Jane Adventures, UK TV series Sports Journalists' Association, UK St. Joan of Arc Catholic High School, Maple, Ontario, Canada St. Joan of Arc Secondary School, Hong Kong St. Johnsbury Academy, Vermont, US Saint Jerome's Academy, Bagabag, Nueva Vizcaya, Philippines Saint Joseph Academy (disambiguation) Staff judge advocate, role in the US Army