William Hellyer (1821 – 8 January 1885) was an Australian solicitor and a member of the New South Wales Legislative Council for one day.
[1] On 20 January 1840, William married Margaret Gray at Bathurst.
In 1861, the Robertson Land Acts were opposed by the Legislative Council and the Premier, Charles Cowper, appointed 21 new members, including Hellyer, to swamp the council.
[4] Before administering the oath to the new members, the President of the Council, Sir William Burton, announced his resignation and left the chamber, with other members following his example.
[8] His son, Thomas Hellyer, was also a solicitor, practicing from the same Sydney premises from 1885,[9] and had been a member of the New South Wales Legislative Assembly from 1882 to 1884.