Stewie is eternally young, but his specific age is shrouded in secrecy. It's unknown the specific duration of time Stewie entered existing. The baby character from the animated television show "Family Guy" is age-defying. His age is yet to be discovered.
Stewart Gilligan Griffin, the clever little troublemaker, is hiding his true age from the world. Speculation abounds as to his actual age. Is he a century old? Or is he fresh to the world? The truth lies only with Stewie! This enigmatic character continues to mesmerize fans with his unrevealed age and perpetually youthful visage.