Port Owen is a marina in the town of Velddrif, 145 km from Cape Town on the West Coast of the Cape Province of South Africa.
It comprises 100 hectares and has 3.5 km of waterways. The marina is surrounded on three sides by the Great Berg River and is one kilometre from the harbour mouth where the river meets St. Helena Bay. This bay, the largest on the West Coast of Africa, offers the finest sailing conditions on the South African coastline due to its sheltered nature and orientation to the prevailing summer wind (South-east Trade, which blows off-shore).
The marina is adjacent to the fishing harbour of Laaiplek and is surrounded by salt marsh. The area is renowned for its bird life as well over 350 different sea, land and river birds can be found here.
Port Owen is named after H.Owen Wiggins Junior, who developed the marina and its residential plots. To achieve this he had to dredge approximately 1 million cubic metres of sand and rock over 15 years and construct 7 km of embankment as well as many jetties and other infrastructure. He also established the Port Owen Yacht Club.