User blog comment:Forrestib/Ozpin's age?/@comment-121.217.193.229-20140101110536

I'd say he is around 50 - 60 years old, I guess because of his voice. His voice doesn't seem very old and sounds like a voice of someone that is 50 years old, but I don't know if you can judge how old someone is by listening to their voice, especially in RWBY.