John Zerwas

John Zerwas
Texas State House Representative John Zerwas providing an update on the Texas Legislature to the Houston Apartment Association, June 8, 2017.
13th Chancellor of the University of Texas System
Assumed office
August 20, 2025
Preceded byJames Milliken
Executive Vice Chancellor for Health Affairs of the University of Texas System
In office
October 1, 2019 – August 20, 2025
Preceded byRay Greenberg
Succeeded byDavid Lakey
Member of the Texas House of Representatives
from the 28th district
In office
January 9, 2007 – September 30, 2019
Preceded byGlenn Hegar
Succeeded byGary Gates
Personal details
Born (1955-03-24) March 24, 1955
PartyRepublican
Spouses
Cynthia Zerwas
(died 2013)
Sylvia Haist
(m. 2015)
Children4
Alma mater
OccupationAnesthesiologist
WebsiteOfficial website
Preview warning: Page using Template:Infobox officeholder with deprecated parameter "honorific-prefix". Replace with "honorific_prefix".
Preview warning: Page using Template:Infobox officeholder with deprecated parameter "honorific-suffix". Replace with "honorific_suffix".

John McCall Zerwas, Sr. (born March 24, 1955), is a physician from Richmond, Texas, who has served as the Chancellor of the University of Texas System since 2025. A member of the Republican Party, he previously served as the Executive Vice Chancellor for Health Affairs from 2019 to 2025. He also served as a member of the Texas House of Representatives from 2007 to 2019.

On June 1st, 2025, Zerwas was appointed interim Chancellor of the University of Texas System, replacing James Milliken. On August 20th, 2025, Zerwas was officially named chancellor of the University of Texas System.