Sean Kevin Duggan (born April 7, 1993) is an American football coach who is the defensive coordinator for the Miami Dolphins of the National Football League (NFL).
Career Path
2015 — Present · Mentors noted
2026–
Miami Dolphins · Defensive coordinator
NFL
2025
Green Bay Packers · Linebackers coach
NFL
2024
Green Bay Packers · Defensive assistant
NFL
2023
Boston College · Co-defensive coordinator & linebackers coach
NCAA
2020–2022
Boston College · Linebackers coach
NCAA
2019
Ohio State · Graduate assistant
NCAA
2018
UMass · Linebackers coach
NCAA
2016–2017
Hawaii · Linebackers coach
NCAA
2015
Boston College · Graduate assistant
NCAA
2011–2014
Boston College · Player
NCAA
Current Role
MIA · since 2026
Defensive Coordinator
Miami Dolphins
first season in the role · hired 2026
Coaching since2015
In the NFL since2024
NFL teamsGB · MIA
Data Sources & Attribution
Credits
Records & history — Pro Football ReferenceSports Reference LLC. “Pro Football Statistics and History.” Pro-Football-Reference.com. (Accessed 2026-08-15.)
Biography — WikipediaCareer timeline and biographical details from Wikipedia, CC BY-SA.
Draft profileThis page was compiled automatically from the coach’s Wikipedia article and is pending editorial review. Career dates and roles follow the article as of 2026-08-15.