Derek Dennis (born July 16, 1988) is an American professional football offensive lineman.

He has been a member of the Miami Dolphins, New England Patriots, Arizona Rattlers, Chicago Bears, Carolina Panthers, Calgary Stampeders, Saskatchewan Roughriders, New York Guardians, and Edmonton Elks.

[2] He then transferred to Trinity-Pawling School in Pawling, New York his senior year as they had a more established football program.

He recorded 149 tackles, ten sacks, nine forced fumbles, four interceptions, eight receptions for 220 yards and 35 pancake blocks during his varsity career.

Dennis played in three games, with one start at right tackle, in 2009 before missing the remainder of the season and being redshirted due to a knee injury.

[4] Dennis was assigned to the Arizona Rattlers of the Arena Football League (AFL) on November 6, 2012.

[9] He was activated from Other League Exempt on April 7, 2015 and played for the team during the 2015 season, catching three passes for sixteen yards.

Dennis played in five games, all starts, at left tackle for the team during the 2015 regular season.

He was an integral part of a Stampeder unit that allowed the fewest sacks in the CFL in 2016 with 20 (11 fewer than the second-best team in that category) and also helped tailback Jerome Messam run for a league-leading 1,198 yards.

In 2019 Dennis started 16 game's for the Stampeders, 14 at LT and 2 at RT, and was named a West Division All-Star for a third time in his career.

[22] He chose not to play in the 2021 season for personal reasons,[23] and the Elks placed him on the retired list on June 23, 2021.

[25] After former Elks general manager, Brock Sunderland, was fired and Chris Jones replaced him, Dennis was finally granted a release from his contract on December 28, 2021.

[28] Two days later it was announced he would miss the remainder of the season with a cracked fibula, which would require surgery.