Fred Hoaglin, was a center in the NFL from 1966 to 1976. He was a member of the first Seattle Seahawks team after being acquired from Houston in the expansion draft.

Hoaglin was an assistant coach for the Detroit Lions (1978–1984), New York Giants (1985–1992), New England Patriots (1993–1996), and Jacksonville Jaguars (1997–2000). He was an assistant coach for the Giants during their Super Bowl XXV championship season.