St. Anthony's High School (South Huntington, New York)

St. Anthony's High School is a Roman Catholic college preparatory (grades 9–12) school located in South Huntington, New York on Long Island. The school was founded in 1933 by the Franciscan Brothers of Brooklyn.

History
On August 31, 1933, ground broke on the Juniorate's new facility in Smithtown, New York. Students interested in the Juniorate attended St. Francis Preparatory School, which was then located in Brooklyn. The ground-breaking marks the founding of St. Anthony's and appears on the school's crest. The school never expanded to more than 50 or 60 pupils at one time during the early years. The first five students graduated in June 1935.

In 1949, the Franciscan Novitiate moved from Smithtown to Wyandanch, New York.

On December 5, 1983, Most Reverend John R. McGann announced that, as part of extensive changes in the educational plans of the Roman Catholic Diocese of Rockville Centre, Holy Family Diocesan High School, South Huntington, New York, would close in June 1984, and St. Anthony's High School will re-locate in the Holy Family facility. The two schools were athletic rivals and the students and faculty were blended into one school.

Following this, the school began to admit young women. St. Anthony's is currently located in this former Holy Family location at 275 Wolf Hill Road in South Huntington.

Curriculum
The basic curriculum at St. Anthony's includes required courses in Theology, English, Social Studies and Physical Education (4 years); Mathematics, Science, Foreign Language (3 years); Fine Arts (Health, Art, Music or Drama) (1 year). Honors and Advanced Placement courses are offered to students who qualify, with electives in all disciplines. The passing grade at St. Anthony's is 75% to ensure that each student leaves with a higher standard of excellence before entering college and a minimum grade of 80% is required for any letter of recommendation to college.

Notable alumni

 * Chris Armas, Former USA Soccer National team member
 * Dan Barry ('76), NY Times reporter
 * Andre Cisco, American football safety for the Jacksonville Jaguars in the National Football League.
 * John Gregorek ('78), Olympian
 * Chris Koepplin ('02), former Buffalo Bills placekicker
 * Nick LaLota ('96), Member of the United States House of Representatives from New York's 1st congressional district since 2023
 * Brian McNamara ('78), actor
 * Jim Pavese, Former NHL hockey player for the St. Louis Blues, New York Rangers, Detroit Red Wings, and Hartford Whalers
 * Paul Scheer ('94), actor
 * Tom Schreiber ('10), Professional lacrosse player, four-time All-American, all-time leading scorer at Princeton
 * Rob Scuderi ('97), NHL hockey player; defenseman and Stanley Cup Champion with the Pittsburgh Penguins 2009 and the L.A. Kings 2012
 * Richard Wiese ('77), explorer, Emmy-winning host and producer, president of the Explorers Club