O'Neill High School is a Catholic secondary education institute located in the Coronation Park neighbourhood of north Regina, Saskatchewan, Canada.

It is officially designated as a community school.

The student population is made up of individuals from the north, west, and central areas of town.

Named for a former local archbishop, Michael C. O'Neill, the school, a part of Regina Catholic Schools, offers instruction in both English and French Immersion.

This Saskatchewan school-related article is a stub.