His dad Delme, and mother Frankie attended the private function at the Wales team hotel in New Plymouth shortly after the final whistle in the Pool D encounter.
Delme Owens said: "I can't put into words how proud we feel to see Ken get his cap awarded tonight. He certainly made a contribution to the game in the time he was on the field and we are delighted by the Wales victory."
Ken Owens, said: "Playing for Wales is a massive honour and I enjoyed every minute of it. For me it represents the achievement of a lifelong ambition and years of very hard work.
"I was nervous when I first got onto the pitch but then I settled down and thoroughly enjoyed the whole experience. I got a few carries with the ball and I felt the scrum went well which I am happy with."