Stubler replaces Rick Campbell, who left to become the head coach of the expansion Ottawa Redblacks.
Stubler, 64, spent the last two seasons as the B.C. Lions defensive co-ordinator. Stubler has over 25 years of CFL coaching experience with Hamilton, Edmonton, Toronto and B.C.
"I'm appreciative that the Stampeders and coach (John) Hufnagel have a little faith in me," says Stubler. "I'm really excited to come and work for the red and white."
Stubler takes over a Calgary defence that last year led the CFL in sacks (63) and featured rush end Charleston Hughes (league-high 18 sacks). The Stampeders were also second in fewest points allowed (22.9 per game).
Stubler is a four-time Grey Cup winner ('86 with Hamilton, '93 with Edmonton, 2000 with B.C. and '04 with Toronto).