University of North Texas Athletics
Swimming and Diving
- Title:
- Associate Head Coach/Diving
- Email:
- stephanie.ocallaghan@unt.edu
- Alma Mater:
- Michigan
Stephanie O’Callaghan enters her sixth season with North Texas swimming and diving and serves as the Mean Green’s Associate Head Coach/Diving. Since joining UNT in 2021, O’Callaghan has transformed the Mean Green diving program into one of the most successful programs in The American, producing conference champions, record-setting performances, NCAA Zone qualifiers and the first NCAA All-American in program history.
Under O’Callaghan’s leadership, UNT has earned the most diving points of any school at the American Conference Championships in each of the last two seasons. In 2026, Mean Green divers captured six of the nine individual diving medals at the conference championships while also winning their second consecutive Team Diving championship. O’Callaghan was named The American’s Co-Diving Coach of the Year following the 2026 season after earning Diving Coach of the Year honors in 2025. UNT won silver in the Team Diving event in 2024 before capturing consecutive championships in 2025 and 2026.
In 2026, senior Kamryn Wong became the first diver in UNT history to qualify for the NCAA Championships and the first student-athlete in North Texas swimming and diving history to earn All-American honors. Wong earned NCAA Second Team All-American honors with a 16th-place finish on 3-meter, becoming the first Mean Green diver to score at the NCAA Championships. She finished her career as the program record holder on both 1-meter and 3-meter and was named The American’s Most Outstanding Diver in 2025 after sweeping the conference springboard titles.
O’Callaghan’s impact on the UNT record book reflects the depth and consistency of the program’s development under her leadership. During her tenure, all four diving school records have been broken and reset multiple times, with four different divers holding the platform record and three different divers holding the 3-meter record. Wong, Sydney Guidara and Amelia Sharp currently hold the program’s Team Diving record, which also stands as the American Conference record. Her divers account for six of UNT’s top 10 performances on 1-meter and seven of the top 10 on both 3-meter and platform, including the top six performances on platform.
UNT has also established unprecedented depth under O’Callaghan. The Mean Green have produced the largest number of NCAA Zone qualifiers in program history during her tenure, including a program-record five divers qualifying for Zones in a single season. In recent years, UNT divers have also competed at the AAU National Championships and USA Diving’s Spring and Winter National Championships. Guidara won both the 1-meter and 3-meter events at the AAU National Championships and advanced to the 1-meter finals at USA Diving’s Winter National Championships, finishing among the top 10.
The program has also produced the first individual medalists for UNT swimming and diving in each of its conference affiliations during O’Callaghan’s tenure. Saylor Hawkins became the first individual medalist in program history at the Conference USA Championships, earning bronze on 3-meter in 2022. In 2024, Sydney Guidara became the first individual medalist for UNT swimming and diving at The American Championships, earning silver on 3-meter. Guidara’s performance marked the program’s first individual medal as a member of The American.
Prior to North Texas, O’Callaghan coached at St. Bonaventure from 2016-21 after previously coaching the Bonnies from 2010-13. During her time at St. Bonaventure, all of the program’s men’s and women’s diving school records were broken before her departure. She earned Atlantic 10 Men’s Diving Coach of the Year honors in 2012, 2013 and 2021 and coached the Bonnies to the 2013 Atlantic 10 championship.
Between her two stints at St. Bonaventure, O’Callaghan served as the head men’s and women’s diving coach at the University of Findlay, where she coached two divers to the NCAA Division II Championships and helped establish new women’s diving school records.
O’Callaghan is a University of Michigan alumna and competed all four years as a member of the Wolverines’ swimming and diving program. She earned Academic All-Big Ten honors in each of her four seasons at Michigan. O’Callaghan also remains active in the sport as a Masters diver and has earned national titles in her age group.
