William Tyrrell (born 26 June 2011) is an Australian boy who disappeared at the age of 3 from Kendall, New South Wales, on 12 September 2014.
He had been playing at his foster grandmother's house with his sister, and was wearing a Spider-Man suit at the time of his disappearance.
Tyrrell is believed to have been abducted.Despite extensive investigations, as of 21 June 2019, five years after his disappearance, Tyrrell has not been found, or his abductor(s) identified.
On 12 September 2016, two years after his disappearance, a reward of A$1 million was offered for the recovery of William and does not require the arrest, charging or conviction of any person or persons.