|Position:||Defensive backs coach|
|Born:||October 26, 1978|
|Coaching stats at PFR|
Jim O'Neil is an American football coach who is currently the defensive backs coach for the Oakland Raiders of the National Football League (NFL). He has previously been a coach in the NFL for the New York Jets, Buffalo Bills, Cleveland Browns, and the San Francisco 49ers. He was a coach for numerous college football teams before that.
From 2006-2008, he was at Eastern Michigan as the recruiting coordinator and safeties coach. He was the defensive coordinator at Towson in 2005, a graduate assistant/defensive back coach at Northwestern from 2003–04, assistant offensive line coach at Pennsylvania in 2002 and an assistant offensive line/tight ends coach at SUNY Albany in 2001.
New York Jets
O'Neil entered the NFL joining the New York Jets as a defensive quality control & defensive backs coach in 2009. He was moved to assistant defensive backs coach in 2010 and remained in that position through the 2012 season.
O’Neil spent the 2013 season as the linebackers coach for the Buffalo Bills.
After the 2013 season, O'Neil was hired as the defensive coordinator of the Cleveland Browns in 2014, but was relieved of his duties after the 2015 season due to a coaching overhaul after head coach Mike Pettine was fired.
San Francisco 49ers
NFL head coaches under whom O'Neil has served:
- Rex Ryan, New York Jets (2009–2012)
- Doug Marrone, Buffalo Bills (2013)
- Mike Pettine, Cleveland Browns (2014–2015)
- Chip Kelly, San Francisco 49ers (2016)
- Jon Gruden, Oakland Raiders (2018–present)
| San Francisco 49ers Defensive Coordinator
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