| Biographical details | |
|---|---|
| Born | April 24, 1945 Springfield, Oregon, U.S. |
| Died | February 14, 2023 (aged 77) South Dakota |
| Playing career | |
| 1963–1966 | Southern Oregon |
| Position(s) | Defensive back |
| Coaching career (HC unless noted) | |
| 1968 | Arizona (GA) |
| 1969–1970 | Aloha HS (OR) (assistant) |
| 1971–1972 | Aloha HS (OR) |
| 1973–1975 | Western Oregon State (DC) |
| 1976–1978 | Idaho (DB/DC) |
| 1979–1983 | San Jose State (DB) |
| 1984 | Stanford (LB) |
| 1985 | Denver Gold (DB) |
| 1986–1989 | Oregon Tech |
| 1990–1991 | Utah (DC) |
| 1992 | Navy (DC) |
| 1993–1994 | Miami (FL) (DC) |
| 1995–1998 | Seattle Seahawks (DC) |
| 1999 | Hawaii (DC) |
| 2000–2002 | Texas Tech (DC) |
| 2003–2005 | San Francisco 49ers (LB) |
| 2007 | Hawaii (DC) |
| 2008–2011 | Hawaii |
| Administrative career (AD unless noted) | |
| 1986–1989 | Oregon Tech (assistant AD) |
| Head coaching record | |
| Overall | 53–39–1 (college) |
| Bowls | 0–2 |
| Tournaments | 2–1 (NAIA D-II playoffs) |
| Accomplishments and honors | |
| Championships | |
| 1 WAC (2010) 1 CFL Southern Division (1987) 1 CFA Mount Hood Division (1988) | |
Gregory James McMackin (April 24, 1945 – February 14, 2023) was an American football coach and player. He served as the head football coach at Oregon Institute of Technology from 1986 to 1989 and at the University of Hawaii at Manoa from 2008 to 2011, compiling a career college football record of 53–39–1. Before coming to Hawaii as defensive coordinator in 2007, he previously served in the same capacity for the Seattle Seahawks, the Miami Hurricanes, and the Texas Tech Red Raiders.[1]