Port of Townsville is a government-owned Corporation and seaport in Townsville, Queensland, Australia. It is the third largest seaport in Queensland after Port of Brisbane and the Port of Gladstone. It is located south of the mouth of Ross Creek and north of the Ross River. Main shipping access is through Cleveland Bay. A second seaport, which only exports sugar is found about 100 kilometres (62 mi) north of Townsville at Lucinda and is also managed by Port of Townsville Limited.

John Melton Black (1830–1919) was a pioneer of Townsville, Queensland, Australia. Black ordered the expedition of Cleveland Bay to find a suitable site for a port and then established the Port of Townsville and the associated town of Townsville. He served for two terms as Mayor of Townsville.