Stewie Griffin is ageless, but his exact age remains a mystery. It's unknown the exact number of years Stewie has been living. The baby character from the animated television show "Family Guy" is immortal. His time on Earth is yet determined.
Stewart Gilligan Griffin, the mischievous baby genius, is impossible to determine from the world. Speculation runs 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 mesmerize fans with his unrevealed age and perpetually youthful visage.