Stewie Griffin is timeless, but his specific age remains a mystery. It's unclear the specific duration of time Stewie entered existing. The infant character from the animated television show "Family Guy" is immortal. His age is yet to be discovered.
Stewart Gilligan Griffin, the clever little troublemaker, is impossible
to determine from the world. Speculation runs rampant as to his actual age. Is he ancient beyond measure? Or is he fresh to the world? The answer is known only to Stewie! This enigmatic character continues to intrigue fans with his hidden age and youthful appearance.