| Birth Date: | January 28, 1944 |
| Birth Place: | Alliance, Ohio, U.S. |
| Number: | 54, 53 |
| Position1: | Center |
| Height Ft: | 6 |
| Height In: | 4 |
| Weight Lb: | 250 |
| College: | Pittsburgh |
| Nfldraftedyear: | 1966 |
| Nfldraftedround: | 6 |
| Nfldraftedpick: | 93 |
| Nfldraftedteam: | Cleveland Browns |
| Playing Years1: | 1966–1972 |
| Playing Team1: | Cleveland Browns |
| Playing Years2: | 1973 |
| Playing Team2: | Baltimore Colts |
| Playing Years3: | 1974–1975 |
| Playing Team3: | Houston Oilers |
| Playing Years4: | 1976 |
| Playing Team4: | Seattle Seahawks |
| Career Highlights: |
|
| Probowls: | 1 |
| Databasefootball: | HOAGLFRE01 |
Fred Hoaglin, (born January 28, 1944) is an American former professional football player who was a center in the National Football League (NFL) from 1966 to 1976. He played college football for the Pittsburgh Panthers.
Hoaglin graduated from East Palestine High School in East Palestine, Ohio and University of Pittsburgh, from where he was eventually drafted by the Cleveland Browns in the 1966 NFL draft.
He was a member of the first Seattle Seahawks team after being acquired from the Houston Oilers in the 1976 NFL Expansion Draft.
After he retired as a player, Hoaglin served as an assistant coach for the Detroit Lions (1978–1984), New York Giants (1985–1992), New England Patriots (1993–1996), and Jacksonville Jaguars (1997–2000), serving under the Bill Parcells coaching tree during his stints at the last three franchises.
He was an assistant coach for the Giants during their Super Bowl XXI and Super Bowl XXV championship seasons under Parcells, then won an AFC Championship at New England under Parcells in 1996 before the Patriots fell 35-21 to the Green Bay Packers in Super Bowl XXXI.
Parcells resigned from the Patriots to take the head coaching job with the New York Jets after that loss, but Hoaglin joined fellow Parcells coaching tree disciple Tom Coughlin in Jacksonville as the tight ends coach. During his time there, the Jacksonville Jaguars won two AFC Central Division titles, reached the playoffs in three consecutive seasons, and played in the 1999 AFC Championship Game.