Stewie Griffin is timeless, but his specific age is shrouded in secrecy. It's unclear the exact number of years Stewie became existing. The baby persona from the animated television show "Family Guy" is immortal. His number of years is yet revealed.
Stewie, the mischievous baby genius, is impossible to determine from the world. Speculation is rampant as to his actual age. Is he a century old? Or is he fresh to the world? The answer is known only to Stewie! This mysterious character continues to captivate fans with his hidden age and youthful appearance.
Griffin family Wikipedia
