2021 Football Roster
Roster
O'Reilly, Callahan

Jersey Number 47
Callahan O'Reilly
- Position:
- Linebacker
- Height:
- 6-2
- Weight:
- 225
- Class:
- Junior
- Hometown:
- Bozeman, MT
- High School:
- Bozeman
Bio
Montana State (2022) Earned Third Team All-America (FCS Stats Perform) and First Team All-Big Sky honors and turned in the most productive season among Big Sky linebackers... finished among the top 10 in the league with 88 total tackles, and was the Big Sky’s only player among the league leaders in both interceptions and fumbles forced... six tackles for loss and three sacks... captured Big Sky Player of the Week honors after getting nine tackles and an interception against Idaho State... started all 14 games as a senior... team captain. (2021) Earned 2nd Team All-Big Sky honors, starting 14 games at Will... missed Idaho State with an injury... second on the team with 105 tackles, including four for a loss... intercepted passes against UNC and Cal Poly in consecutive games... returned an interception 39 yards for a touchdown against Cal Poly. (2019) Played in all 15 games, starting the last 10, and and led the Cats with 91 total tackles... scored on a 73-yard touchdown run from punt formation against Northern Colorado... logged 16 tackles against Cal Poly, 11 each against Sac State, North Dakota and NDSU... his only sack of the season came against Cal Poly... (2018) Played in all 13 games on kick teams... has also seen time as a reserve linebacker. (2017) Redshirted... Top Offensive Scout.
High School Second Team All-Class AA and First Team All-Conference quarterback for the Bozeman Hawks in 2016... threw for 3,178 yards, rushed for 379, and accounted for 39 total touchdowns... played on Bozeman’s 2015 state title team, which finished 13-1... three-time academic all-state and two-time basketball letterwinner.
Personal and Academics One of four children of Keith and Debby O’Reilly... a mechanical engineering major... played for Levi Wesche at Bozeman High.... born Callahan Peter O’Reilly in Bozeman... his mother played basketball at Arizona State, his father played football at Carroll, and his brother Payton plays football at Miami (Ohio)... uncle Shane Collins played football for the Redskins and at Arizona State, and cousin Grant Collins is a Bobcat teammate... former Bozeman High teammates include Balue Chapman and Will Martel of MSU, and North Dakota State baseball standout Bennett Hostetler.
High School Second Team All-Class AA and First Team All-Conference quarterback for the Bozeman Hawks in 2016... threw for 3,178 yards, rushed for 379, and accounted for 39 total touchdowns... played on Bozeman’s 2015 state title team, which finished 13-1... three-time academic all-state and two-time basketball letterwinner.
Personal and Academics One of four children of Keith and Debby O’Reilly... a mechanical engineering major... played for Levi Wesche at Bozeman High.... born Callahan Peter O’Reilly in Bozeman... his mother played basketball at Arizona State, his father played football at Carroll, and his brother Payton plays football at Miami (Ohio)... uncle Shane Collins played football for the Redskins and at Arizona State, and cousin Grant Collins is a Bobcat teammate... former Bozeman High teammates include Balue Chapman and Will Martel of MSU, and North Dakota State baseball standout Bennett Hostetler.
Leon Costello Press Conference: Kennedy-Stark Athletic Center
Thursday, July 31
A Conversation with President Dr. Waded Cruzado | Montana State Athletics
Monday, May 19
Big Cats, Little Trucks - Willie Patterson
Wednesday, May 03
Matt Houk Introductory Press Conference
Wednesday, May 03