Stewie is eternally young, but his exact age is shrouded in secrecy. It's unknown how old Stewie has been existing. The infant
persona from the animated television show "Family Guy" is forever young. His time on Earth is yet determined.
Stewart Gilligan Griffin, the clever little
troublemaker, is keeping his age a secret from the world. Speculation is rampant as to how many years he has been alive. Is he ancient beyond measure? Or is he fresh to the world? Only Stewie knows! This enigmatic character continues to intrigue fans with his undisclosed age and forever young facade.