Mercy High School

Mercy High School may refer to:


 * Mercy High School (Burlingame, California)
 * Mercy High School (Red Bluff, California)
 * Mercy High School (San Francisco), California
 * Mercy High School (Connecticut), Middletown, Connecticut
 * Mercy High School (Baltimore, Maryland)
 * Mercy High School (Farmington Hills, Michigan)
 * Mercy High School (Omaha, Nebraska)
 * Bishop McGann-Mercy Diocesan High School, formerly Mercy High School, Riverhead, New York
 * Mercy Career & Technical High School, Philadelphia, Pennsylvania, a private, Roman Catholic high school