Stewie is ageless, but his precise age is shrouded in secrecy. It's unknown the exact number of years Stewie became existing. The baby persona from the animated television show "Family Guy" is forever young. His time on Earth is still revealed.
Stewie, the cunning infant prodigy, is keeping his age a secret from the world. Speculation abounds as to the length of time he has existed. Is he ancient beyond measure? Or is he fresh to the world? The truth lies only with Stewie! This mysterious character continues to intrigue fans with his undisclosed age and youthful appearance.