|Position:||Associate Head Coach|
|Alma Mater:||Notre Dame|
Brock Sheahan is currently in his fifth season at Holy Cross as an assistant men's hockey coach in 2018-19. Sheahan was promoted to associate head coach after two seasons of serving as an assistant coach.
Sheahan has worked directly with the team’s defensemen over the last two years and has been instrumental in the defense’s success. The Crusaders posted a school record 2.35 goals allowed per game in Sheahan’s first season in 2014-2015. Then in 2015-2016, Holy Cross continued to play strong defense as the Crusaders led the league with 2.11 goals allowed per game in conference action. In 2015-2016, the Crusaders finished 18-13-5 and posted a 16-7-5 record in Atlantic Hockey. The 16 conference victories were the team’s most since the 2005-2006 season.
Prior to his time at Holy Cross, Sheahan spent the 2013-2014 season at Notre Dame as a volunteer assistant coach as his alma mater went 23-15-2 and earned a spot in the NCAA Tournament. Before returning to Notre Dame, Sheahan played five years of professional hockey. He spent four seasons in the East Coast Hockey League (ECHL) playing one season with the Wheeling Nailers (2008-2009), two seasons with the Cincinnati Cyclones (2009-2011) and one with the Ontario Reign (2012-2013). Sheahan appeared in 327 ECHL games with 14 goals and 67 assists for 81 points. He served as an assistant captain at Ontario, Cincinnati and Wheeling. He led the Cyclones to the Kelly Cup championship in 2010. He also played one season in Germany with SC Riessersee (2011-2012) as he posted three goals and 24 assists for 27 points.
Sheahan played for the Irish from 2004 to 2008 and was part of Notre Dame's first CCHA championship team in 2006-2007 and first Frozen Four team the following year as a senior assistant captain advancing to the 2008 national championship game. During his career, he played in 161 games, scoring four goals with 29 assists for 33 points. He was one of the leaders on two of the top defensive teams in the nation during his career. As a junior, he was fourth on the team with a +20 on a squad that led the nation in goals-against average with a 1.63 mark. That team went 32-7-3 on the way to its first CCHA regular-season and Mason Cup championships. The following year as a senior, Sheahan helped the Irish to the Frozen Four championship game with a 27-16-4 record. The Irish gave up 2.10 goals-per game that year and he led them with a +21. He was selected as the winner of the William Donald Nyrop Award as that team's top defenseman.
A native of Lethbridge, Alberta, Sheahan graduated from Notre Dame with a degree in finance from the Mendoza College of Business. Sheahan’s brother, Brodie (Class of 2010), was a four-year member of the men’s hockey team at Holy Cross. Sheahan and his wife Ashley reside in Worcester with their son Beau.