Jeff Hafley

Jeff Hafley (born April 4, 1979) is an American football coach who is the defensive coordinator for the Green Bay Packers of the National Football League (NFL). He previously served as the head coach at Boston College from 2020 to 2023.

Early life and playing career
Raised in Montvale, New Jersey, Hafley played prep football at Pascack Hills High School.

Hafley was a four-year letterman as a wide receiver on the Siena Saints football team from 1997 to 2000, and he graduated from Siena College in 2001 with a bachelor's degree in history. He earned a master's degree from the University at Albany, SUNY in 2003.

Early coaching career
Before entering the NFL ranks, Hafley spent 11 years on the collegiate sidelines with coaching stints at Worcester Polytechnic (2001), Albany (2002–05), Pittsburgh (2006–10) and Rutgers (2011). While at Rutgers, the Scarlet Knights were the ninth-ranked passing defense in the country; Duron Harmon earned first-team All-Big East honors, and Logan Ryan received second-team accolades. Both Harmon and Ryan were drafted by and played for the New England Patriots.

NFL assistant coach
In 2012, Hafley made his NFL coaching debut with the Tampa Bay Buccaneers. He joined the Bucs as assistant defensive backs coach and spent 2013 as the secondary coach/safeties. That season, Hafley oversaw a unit which helped the team finish tied for third in the NFL with 21 interceptions. On January 27, 2014, Hafley was hired by the Cleveland Browns to coach their secondary. Hafley would remain in this role for 2 seasons (2014–15), before being relieved of his duties due to a coaching overhaul. On January 24, 2016, Hafley was hired by San Francisco 49ers' new head coach Chip Kelly to coach the defensive backs.

Ohio State
In 2019, Hafley was hired to be the co-defensive coordinator at Ohio State. Hafley quickly established himself as one of the best recruiters in the country, being ranked ninth overall recruiter for the 2020 class by 247Sports.com.

Boston College
On December 13, 2019, Hafley was hired to be the head coach at Boston College after the firing of Steve Addazio. During his four years with the team, Hafley led the Eagles to a 22–26 overall record and three bowl game appearances.

Green Bay Packers
On January 31, 2024, Hafley was hired by the Green Bay Packers to be their defensive coordinator, marking his return to the NFL after five seasons in the college coaching ranks.

Personal life
Hafley and his wife, Gina, have two daughters.