Henry Ferdinand Halloran (9 August 1869 – 22 October 1953) was a major property owner and developer in New South Wales in the early part of the twentieth Century.
Halloran was born in Sydney, his father was a bank clerk and architect named Edward Roland Halloran and mother was Adeline Burgess, née Reuss. His grandfather was also called Henry Halloran and his great grandfather was Laurence Hynes Halloran, a convict transported to Sydney. Halloran attended Sydney Boys High School and Newington College. He qualified as a surveyor in 1890 and became a conveyancer and valuer. His developments included Seaforth and Warriewood in Sydney in 1906, and Environa near Canberra. He attempted to create a place called Pacific City near Jervis Bay. Halloran died on 22 October 1953 at the age of 84.