2023 Division 1-A Rugby Championship

The 2023 Division 1-A Rugby Championship is the eleventh season of the Division 1-A Rugby championship, the annual university rugby union competition run by USA Rugby for teams from the top twelve college teams in the United States. Navy won their first Championship with a 28–22 win over California, capping a perfect 18–0 season.

Teams
Twelve clubs from the six major conferences compete in the 2023 National Championship playoffs.

The distribution of teams is:
 * PAC Rugby Conference: two teams
 * California: two teams
 * Rocky Mountain: one team
 * Independent: one team
 * Rugby East: two teams
 * Mid-South Conference: three teams
 * Red River Conference: one team

The following teams qualified for the tournament.

Bracket
Sources:

Winner

 * Lewis Gray, US Naval Academy

Finalists

 * Wyatt Parry, BYU
 * Max Schumacher, Cal
 * Joe Marchant, Saint Mary's
 * Lewis Gray, US Naval Academy
 * Orrin Bizer, Life University

Sources:

2022–2023 First Team All Americans
Sources:
 * Gabe Mahuinga – Brigham Young University
 * Runako Brynard – Lindenwood University
 * Joe Marchant – Saint Mary’s College
 * Ben Haugh – Navy
 * Lucas Pattinson – Army
 * Kaipono Kaioshi – Saint Mary’s College
 * Alex Cleary – Central Washington University
 * Orrin Bizer – Life University
 * Tiaan Mosconi – Army
 * Max Schumacher – University of California – Berkeley
 * Nick Hardrict II – Lindenwood University
 * EJ Freeman – University of Arizona
 * Lewis Gray – Navy
 * Daelen Denenberg, Santa Clara University
 * Roanin Krieger – Navy
 * Emilio Shea – University of California – Berkeley
 * Adam Chadwick – Life University
 * Connor Devos – Lindenwood University
 * Jack McMahon – Navy
 * Dominic Besag – Saint Mary’s College
 * Cole Semu – Brigham Young University
 * Calvin Liulamaga – Central Washington University
 * Donovan Law, Life University