About HTSMUN

Six years of student-led diplomacy.

Holy Trinity School, Richmond Hill, Ontario.

The conference

A conference built by students, for students.

HTSMUN was founded in 2021 by a group of Holy Trinity School students convinced that the most rigorous high school Model United Nations conference in the GTA didn’t need to be hosted by a university. It needed to be hosted by people who still remembered what it felt like to walk into committee for the first time — nervous, over-prepared, certain that everyone else had read more.

Five iterations later, what began as a single-day pilot in an empty wing of the school has become one of Ontario’s most sought-after secondary conferences. Delegates come from across Toronto, the GTA, and increasingly from schools in Ottawa, Montreal, and beyond. The rooms are bigger. The crises are sharper. The closing ceremonies run longer than they probably should.

What hasn’t changed is the premise. Every chair is a current HTS student. Every background guide is written from scratch each year. And every committee is built around the conviction that high school delegates can — and should — be trusted with the same questions the General Assembly itself is still working through.

The HTS crest on the school's main building
Holy Trinity School · Founded 1981
Our mission

What we ask of every committee.

Substantive debate.

We choose topics that require real research, not rehearsed speeches. Background guides are written by chairs who’ve read the actual UN resolutions, not just the Wikipedia summary.

Student leadership.

Every committee is run by a student chair who spent twelve months preparing for opening gavel. The secretariat answers to no one but the delegates in the room.

Lasting community.

Our delegates leave with the network that will shape their next ten years — classmates from across the country, mentors in the secretariat, and a few inside jokes from unmoderated caucus.

Iterations

Five conferences in. One to go.

Each year, HTSMUN grows — a few more delegations, a sharper programme. The roman numeral changes. The principles don’t.

  1. 2021

    HTSMUN I

    — members

    The inaugural year — a focused slate, one wing of the school, and the founding theme of accountable institutions.

  2. 2022

    HTSMUN II

    — members

    Nearly doubled in size. Added the first crisis simulations and the first proper closing ceremony in the auditorium.

  3. 2023

    HTSMUN III

    — members

    Opened registration to schools across York Region, the GTA, and beyond.

  4. 2024

    HTSMUN IV

    55 members

    Introduced fast-moving crisis committees — one war, every directive consequential on both sides of the table.

  5. 2025

    HTSMUN V

    — members

    One of our largest years yet, with registration filling quickly and delegations travelling in from across Ontario and beyond.

  6. 2026

    HTSMUN VI

    — members

    December 5. The sixth iteration — five committees, each sharpened to its essentials, and our most focused programme yet.

Holy Trinity School campus, Richmond Hill
Holy Trinity School campus · Richmond Hill, Ontario
The school

Holy Trinity School.

Holy Trinity School is an independent, co-educational, JK–12 day school in Richmond Hill, Ontario. Founded in 1981, the school sits on a forty-acre campus at the corner of Bayview and Elgin Mills, just north of Toronto.

HTS is known for an academic program that takes its students’ ideas seriously — senior seminars in philosophy, ethics, and political theory; a debate program that has produced national champions; and a culture that treats high school as a place to start asking real questions rather than rehearse for them.

HTSMUN is one of more than a dozen student-led initiatives at the school, and the only one that turns the auditorium into a General Assembly hall every December.

Visit hts.on.ca
Location

Forty acres at Bayview & Elgin Mills.

Holy Trinity School

11300 Bayview Avenue · Richmond Hill, ON L4S 1L4

  • GO Transit Richmond Hill GO Station, then a short YRT bus connection or ride-share to campus.
  • Parking Delegate parking available in the south lot. School parking is free for the duration of the conference.
  • Drop-off zone Designated bus drop-off at the main circle. Volunteer marshals on hand from 7:30 a.m.
11300 Bayview Avenue · Richmond Hill, ON
Get in touch

A question for the secretariat?

Whether you’re a faculty advisor planning a delegation, a delegate weighing committees, or a partner looking to support HTSMUN VI — we’d love to hear from you. Reach the secretariat at .

Email the secretariat