Walvis Bay Syllabification: (Wal·vis Bay)Pronunciation: /ˈwôlvəs, ˈwäl-/Definition of Walvis Bay a port in Namibia; population 55,000 (est. 2009). Administratively, it was an exclave of the former Cape Province in South Africa until it was transferred to Namibia in 1994. Walvis Bay in other Oxford dictionaries Definition of Walvis Bay in the British & World English dictionary