Ryan Nielsen

Ryan Nielsen
	Nielsen in 2023
Buffalo Bills
Position:	Senior defensive assistant
Personal information
Born:	March 20, 1979; Los Angeles, California, U.S.
Height:	6 ft 5 in (1.96 m)
Weight:	285 lb (129 kg)
Career information
High school:	Royal (Simi Valley, California)
College:	USC (1997–2001)
NFL draft:	2002: undrafted
Career history
As a player:
	Philadelphia Eagles (2002)*; Los Angeles Avengers (2004);
	* Offseason and/or practice squad member only
As a coach:
	USC (2002) ; Volunteer assistant; Ole Miss (2005–2007) ; Defensive line coach; Central Connecticut State (2008–2009) ; Defensive coordinator/defensive line coach/linebackers coach; UT Martin (2010) ; Defensive line coach/special teams coach; Northern Illinois (2011) ; Defensive line coach/recruiting coordinator; Northern Illinois (2012) ; Co-defensive coordinator/defensive line coach/recruiting coordinator; NC State (2013) ; Defensive line coach/recruiting coordinator; NC State (2014–2016) ; Defensive line coach/run game coordinator; New Orleans Saints (2017–2020) ; Defensive line coach; New Orleans Saints (2021) ; Assistant head coach/defensive line coach; New Orleans Saints (2022) ; Co-defensive coordinator/defensive line coach; Atlanta Falcons (2023) ; Defensive coordinator/defensive line coach; Jacksonville Jaguars (2024) ; Defensive coordinator; Buffalo Bills (2025–present) ; Senior defensive assistant;
As an administrator:
	Idaho (2004) ; Administrative assistant;
	Coaching profile at Pro Football Reference
	Stats at ArenaFan.com

Ryan Nielsen (born March 20, 1979) is an American football coach and former defensive tackle who is a senior defensive assistant for the Buffalo Bills of the National Football League (NFL). He signed with the Philadelphia Eagles in 2002 as an undrafted free agent.