Mount Anville Secondary School is a Catholic, all-girls post-primary school in South County Dublin, Ireland. It was a boarding school but in recent years due to decreased demand it has become a day-school. It has approximately 600 students. It is attached to Mount Anville Junior School, Mount Anville National School and Mount Anville Montessori School. It was founded by nuns of the Order of the Sacred Heart.

It was established in 1853 in the former home of Mr. William Dargan, who was an influential railway tycoon.

Past Pupil: Mary Robinson