Williams committed suicide last week after a prolonged depression. He was 63. The online petition signed on charge.Org has been signed by 9,000 fans so far and still counting.
Fans think that the Tunnel, which has rainbow painted on its south end arc should honour the actor, who was famous for wearing rainbow suspenders.
The petition is addressed to Assemblyman Marc Levine, D-San Rafael to introduce legislation to christen the 'Robin Williams Tunnel'.