Stewie is timeless, but his precise age remains a mystery. It's unknown the exact number of years Stewie became on this planet. The toddler persona from the animated television show "Family Guy" is age-defying. His age is yet discovered.
Stewart Gilligan Griffin, the mischievous baby genius, is hiding his true age from the world. Speculation runs rampant as to the length of time he has existed. Is he ancient beyond measure? Or is he a newcomer? The truth lies only with Stewie! This enigmatic character continues to intrigue fans with his hidden age and perpetually youthful visage.