UW This Season: O’Brien will be a veteran tight end for the Cowboys this season.

2022: O’Brien appeared in nine games with two starts for the Cowboys. He finished the season with four catches for 83 yards. He recorded two catches for 31 yards against Fresno State with his receptions being a career high. He recorded 46 yards receiving against Utah State for a career best with all the yards coming on a career-long reception.

2021: O’Brien appeared in 11 games for the Pokes at tight end and on special teams He recorded two catches for 27 yards on the season, which came in a contest against Ball State. He recorded a long catch of 17 yards in the contest.

2020: O’Brien appeared in two games for the Cowboys during the season playing in a reserve well and spending time on special teams.

High School: Colin O'Brien was ranked as a three-star recruit by both 247Sports and ESPN. 247Sports ranked O'Brien as the No. 6 junior college tight end recruit in the nation in the 2020 recruiting class and the No. 25 overall junior college recruit in the state of California. O'Brien helped Saddleback Community College post a 9-2 record and advance to the Southern California Football Association Regional Semifinals. The Gauchos posted a 4-1 conference record to place second in the National Division Southern League behind eventual California Community College Athletic Association State Champion Riverside City College. The Saddleback Gauchos finished the 2019 season ranked No. 5 in the final California Junior College Athletic Association Coaches Poll. He played for head coach Mark McElroy at Saddleback Community College. O'Brien played football and volleyball at Mission Viejo High School before playing his freshman season of football at Saddleback Community College in 2019. He enrolled at UW in January of 2020. O'Brien was also recruited by Boise State and Massachusetts.

Personal: He is majoring in criminal justice at Wyoming.