Mount St. Dominic Academy is a four-year Catholic college preparatory school for young women located in Caldwell, in Essex County, in the U.S. state of New Jersey, serving students in ninth through twelfth grades.

The school shares a campus with Caldwell University and the Sisters of Saint Dominic that covers 21 acres (8.5 ha).

The Mount St. Dominic Academy Lady Lions[5] compete in the Super Essex Conference which is comprised of public and private high schools in Essex County and was established following a reorganization of sports leagues in Northern New Jersey by the New Jersey State Interscholastic Athletic Association (NJSIAA).

[17] The Mount offers a variety of both Varsity and JV teams, including sports such as basketball, bowling, cross country, field hockey, golf, lacrosse, soccer, softball, swimming, tennis, track, and volleyball.

[19] In 1994, the team beat Gloucester Catholic by a score of 12-2 to win the Parochial B championship game and finish the season at 24-3.

[22] The basketball team won the Non-Public Group B state championship in 1994, defeating St. Rose High School in the tournament final.

[24][25] The volleyball team won the Group I state championship in 1994, against runner-up Secaucus High School in the playoff finals.

Past productions include: 2009-2010 Anything Goes, 2010-2011 Once Upon a Mattress, 2011-2012 Sarah and Eleanor & The Drowsy Chaperone, 2012-2013 The Odd Couple & The Mystery of Edwin Drood, 2013-2014 The Dining Room & The King and I, 2014-2015 Our Town & The Boyfriend, 2015-2016 Radium Girls & Peter Pan, 2016-2017 Little Women & 42nd Street, 2017-2018 Almost, Maine & Bye Bye Birdie, 2018-2019 A Midsummer Night’s Dream & Hairspray, 2019-2020 You Can't Take It With You & Beauty and the Beast, 2020-2021 Radio Play Disaster/39 Steps & Seussical, 2021-2022 Letters to Sala & Newsies, 2023-2024 It's a Madhouse & Anastasia