The club announced on Saturday that they will not renew Stubler's contract for the 2014 season, ending his latest stint in B.C.
Stubler had finished his second year as the team's defensive co-ordinator after returning to B.C. in 2012 following stays with the club in 2000 and 2010.
"I am grateful for Rich's contributions to our organization and on behalf of our club, I wish him the very best in the future," said head coach Mike Benevides.
The Lions had a 11-7 record in the regular season, finishing third in the CFL West division.
B.C. lost to the Saskatchewan Roughriders 29-25 in the West semifinal.
Stubler has been in and out of the CFL since 1983, serving as a defensive co-ordinator for the Hamilton Tiger-Cats, Edmonton Eskimos, Toronto Argonauts and B.C. in that time.
He was also head coach of the Argos in 2008, but was fired after a 4-6 start to the season.