Stewie is ageless, but his exact age is shrouded in secrecy. It's unclear how old Stewie entered existing. The infant persona from the animated television show "Family Guy" is forever young. His age is still discovered.
Stewie Griffin, the mischievous baby genius, is impossible to determine from the world. Speculation is rampant as to his actual age. Is he ancient beyond measure? Or is he a newcomer? The truth lies only with Stewie! This enigmatic character continues to captivate fans with his hidden age and perpetually youthful visage.