Holy Trinity Diocesan High School

{{Use mdy dates|date=June 2014}}

{{more citations needed section|date = March 2012}}

{{Infobox school

| name = Holy Trinity Diocesan High School

| native_name = Home of the Titans

| image = Exterior of Holy Trinity.jpg

| image_size =

| caption = Front of Holy Trinity Diocesan High School

| location =

| streetaddress = 98 Cherry Lane

| city = Hicksville, Nassau

| state = New York

| zipcode = 11801

| country =

| coordinates = {{coord|40|44|48|N|73|31|57|W|type:edu_region:US-NY|display=inline,title}}

| district =

| authority =

| religion = Roman Catholic;
Diocesan

| principal = Jim Grillo{{cite press release|last=Dolan|first=Sean P.|date=4 August 2020|title=Jim Grillo Named Principal of Holy Trinity Diocesan High School|url=https://www.drvc.org/wp-content/uploads/rev84Final_Jim_Grillo_Principal_HTDHS_08_04_2020.pdf|publisher=Diocese of Rockville Centre|access-date=4 August 2020|archive-date=July 16, 2024|archive-url=https://web.archive.org/web/20240716015609/https://www.drvc.org/wp-content/uploads/rev84Final_Jim_Grillo_Principal_HTDHS_08_04_2020.pdf|url-status=live}}{{cite web|url=https://holytrinityhs.org/news/holy-trinity-dhs-announces-new-principal|title=Holy Trinity DHS Announces New Principal|date=4 August 2020|website=holytrinityhs.org|access-date=4 August 2020|archive-date=September 28, 2020|archive-url=https://web.archive.org/web/20200928055956/https://holytrinityhs.org/news/holy-trinity-dhs-announces-new-principal|url-status=live}}

| dean =

| administrator =

| rector =

| faculty = ~90

| teaching_staff =

| school_code = 690

| average_class_size = 25–28

| ratio =

| SAT =

| ACT =

| type = Coeducational

| system =

| tuition = $11,000 (2018–2019)

| endowment =

| grades = 9-12

| campus = Suburban

| campus_size =

| campus_type =

| athletics = 2013 - 2014 CHSAA AA State Champions Basketball

2x CHSAA Class A Intersectional Champions Lacrosse (2015–16, 2016–17)

CHSAA Class AA 2nd place Football (2016–17)

| athletics_conference =Catholic AAA

| slogan = "How High School Should Be"

| song =

| fight_song =

| motto = A Special Time, Place and Spirit

| motto_translation =

| accreditation = Middle States Association of Colleges and Schools{{cite web|url=http://www.css-msa.org/search.php/ |title=MSA-Commission on Secondary Schools |access-date=May 27, 2009 |author=MSA-CSS |url-status=dead |archive-url=https://web.archive.org/web/20090712083151/http://www.css-msa.org/search.php/ |archive-date=July 12, 2009 |df=mdy-all }}

| rival =

| mascot = The Titan

| mascot_image =

| sports =

| patron =

| team_name = Titans

| nickname =

| colors = Green and White {{color box|green}}{{color box|white}}

| yearbook = Tribute

| publication =

| newspaper = Trinity Triangle

| established = 1966

| status =

| closed =

| alumni =

| nobel_laureates =

| enrollment = 1300

| enrollment_as_of = 2013

| free_label = Enrollment Exam

| free_text = C.H.S.E.E

| free_label1 =

| free_text1 =

| free_label2 = Christopher Hardardt

| free_label3 = Diocese

| free_text3 = Diocese of Rockville Centre

| free_label5 =

| free_text5 =

| footnotes =

| picture =

| homepage = {{URL|holytrinityhs.org}}

}}Holy Trinity High School is a co-educational learning environment located centrally in Hicksville, Nassau County, New York on Long Island. Education is based on New York State Education Standards with a strong emphasis on Religious Studies. It is operated by the Roman Catholic Diocese of Rockville Centre.