Martin Mayhew is in his fourth season with the 49ers and second as the vice president of player personnel. He spent the previous two years (2017-18) as the team's senior personnel executive. Mayhew joined the 49ers after spending the 2016 season as the director of football operations/special projects with the New York Giants. In his role with the Giants, he worked all aspects of the salary cap, CBA compliance and player contract negotiations.

Prior to his time in New York, Mayhew spent 15 years (2001-15) in the Detroit Lions organization, including the final seven as the team's general manager. Taking over as general manager following the team's winless season in 2008, he aided Detroit's ascent to a 10-win season in 2011. Mayhew was responsible for the draft selections of Pro Bowlers QB Matthew Stafford and DE Ezekiel Ansah, as well as 2010 AP Defensive Rookie of the Year DT Ndamukong Suh, who was selected to four Pro Bowls as a member of the Lions. He was also responsible for signing WR Golden Tate and S Glover Quin in free agency, both of whom went on to earn Pro Bowl honors in Detroit.

Martin Mayhew is in his fourth season with the 49ers and second as the vice president of player personnel. He spent the previous two years (2017-18) as the team's senior personnel executive. Mayhew joined the 49ers after spending the 2016 season as the director of football operations/special projects with the New York Giants. In his role with the Giants, he worked all aspects of the salary cap, CBA compliance and player contract negotiations.

Prior to his time in New York, Mayhew spent 15 years (2001-15) in the Detroit Lions organization, including the final seven as the team's general manager. Taking over as general manager following the team's winless season in 2008, he aided Detroit's ascent to a 10-win season in 2011. Mayhew was responsible for the draft selections of Pro Bowlers QB Matthew Stafford and DE Ezekiel Ansah, as well as 2010 AP Defensive Rookie of the Year DT Ndamukong Suh, who was selected to four Pro Bowls as a member of the Lions. He was also responsible for signing WR Golden Tate and S Glover Quin in free agency, both of whom went on to earn Pro Bowl honors in Detroit.

In 2015, Detroit had five players selected to the Pro Bowl for the first time since 2000 (WR Calvin Johnson, Tate, Stafford, Suh & Quin). The previous year, Mayhew constructed a Lions team that won 11 games for the fourth time in franchise history. That year, Detroit finished second in total defense and third in points allowed, led by their top-ranked rush defense that allowed just 69.3 yards per game, which stands as the ninth fewest rushing yards allowed per game in NFL history.

Mayhew first joined the Lions organization in 2001 as the senior director of football administration/staff counsel. In 2003, he was promoted to senior vice president of football administration/staff counsel and was appointed senior vice president and assistant general manager in 2004. In 2008, Mayhew was promoted to general manager.

Originally a 10th round selection (262nd overall) by the Buffalo Bills in the 1988 NFL Draft, Mayhew played nine seasons in the NFL. During his career with Buffalo (1988), Washington (1989-92) and Tampa Bay (1993-96), he appeared in 118 games (107 starts) and registered 473 tackles, 21 interceptions, four forced fumbles and 1.0 sack. In 1991, Mayhew started and was a member of Washington's Super Bowl XXVI champion team.

A native of Tallahassee, FL, Mayhew graduated from Florida State University with a degree in business management and earned his law degree from Georgetown University's Law Center in 2000. While at FSU, he was a National Merit and Achievement Scholar and earned GTE CoSIDA Academic All-America honors. He was also a two-sport athlete, lettering on both the Seminoles football and track teams. During the 1999 season while attending law school, Mayhew spent nine months as an intern in Washington's personnel department. He also had two separate internship stints with the NFL league office in both the labor operations and legal departments before joining the Lions in 2001. He is a member of The Florida Bar.