Holy Cross Catholic Academy High School (or Holy Cross) is a Catholic high school. It was first established in September 1986 to serve western Woodbridge, a community in Vaughan, Ontario, Canada. The school has offered instruction to grades seven through nine when it first opened and added a new grade each successive year. The school now serves grades nine through twelve (ages 14 – 18). In 1990, the first group of students graduated from Holy Cross Catholic High School. While the present building was under construction, the school operated out of what is now San Marco Elementary School, located nearby its present location.