Carnarvon (/kərˈnɑːrvən/ kər-NAR-vən) is a coastal town situated approximately 900 kilometres (560 mi) north of Perth, in Western Australia. It lies at the mouth of the Gascoyne River on the Indian Ocean. The Shark Bay world heritage area lies to the south of the town and the Ningaloo Reef and the tourist town of Exmouth lie to the north. Mungullah Aboriginal Community was formerly in the town however it has moved east of the town.

Inland, Carnarvon has strong links with the town of Gascoyne Junction and the Burringurrah Community. At the 2021 census, Carnarvon had a population of 4,879.

The Inggarda people are the traditional owners of the region around Carnarvon. Before European settlement the place now called Carnarvon, located at the mouth of the Gascoyne River, was known as Kuwinywardu which means 'neck of water'. Indigenous Australians associating with the Carnarvon area typically associate as being Yamatji, traditionally speaking the Wajarri language.

The town was founded in 1883, initially as a port and supply centre for the surrounding region, and is the administrative centre for the Shire of Carnarvon. The town site was officially gazetted on 4 June 1891, named after Henry Herbert, 4th Earl of Carnarvon, a past Secretary of State for the Colonies.

One Mile Jetty was built in the late 1890s and had reached its maximum length in 1904. In 2021, it was destroyed by Cyclone Seroja.

Carnarvon has had three tramways.

The Carnarvon Light Railway Association operated trains along restored tracks on the jetty; however, due to unsafe conditions the jetty was closed to the public. In 2021 it was destroyed by Cyclone Seroja.

From 1964 to 1965, 12 sounding rockets were launched from Carnarvon to a maximum altitude of 120 kilometres (75 mi).^{[full citation needed]}