Connacht team manager Tim Allnutt said that the appointment of Forshaw was a big boost ahead of the new season.
The 40-year-old joins Connacht from Wigan Warriors where he has been strength and conditioning coach for the past few years.
He played for Wigan Warriors, Wakefield Trinity, Bradford Bulls and Warrington Wolves during his career.
CONNACHT MANAGEMENT - 2010/11 SEASON:
Director of Coaching - Eric Elwood
Team Manager - Tim Allnutt
Assistant Coach - Dan McFarland
Backs Coach - Brian Melrose
Defence Coach - Mike Forshaw
Video Analyst - Conor McPhillips