Board Thread:Lion Guard Discussion/@comment-3229047-20190818163024/@comment-31214635-20190818210710

Yes.

I hear a lot of people say "But Kion isn't in Simba's Pride". Know who's nowhere to be seen in The Lion King? Zira. Or any of her followers for that matter. They don't exist anywhere. By that logic, Simba's Pride can't be canon either.

So again, yes, the show is canon, and I consider it canon myself.