Paramus Catholic High School is a co-educational Roman Catholic high school located in Paramus in Bergen County, New Jersey, United States. The school, founded in 1965, under Archbishop Thomas A. Boland, and Superintendent of Schools, Monsignor Joseph P. Tuite, Paramus Catholic operated as a co-institutional school until 1995. Paramus Catholic was staffed by the Brothers of Christian Schools under the leadership of Bro. James P. Kelly, FSC, Principal, and Paramus Catholic Girls' High School by the Sisters of Charity of Convent Station, New Jersey, under the leadership of Sr. Helen Demetria, SC, Principal. There was a sharing of the plant and facility, however, the two schools operated as separate academic institutions. Paramus Catholic was the last secondary school established by the Archdiocese of Newark in Bergen County. The two schools were unified into one by the Archdiocese of Newark beginning in the 1995–1996 school year. When the school was unified to one academic institution, the Christian Brothers withdrew from involvement, and the Sisters of Charity took over leadership, until their withdrawal from the school in the early 2000s. Paramus Catholic High School is one of several high schools in the Archdiocese of Newark. It has the largest enrollment of any Roman Catholic high school in the state of New Jersey.