In terms of land, France controlled most of it. Spain, Portugal and the United Kingdom did have sizable colonies in West Africa, though.
Nigeria is the name of the British colony in West Africa.
Russia , -or Canada.
South Africa
BelgiumUnited KingdomFranceGermanyItalyPortugalSpainNetherlands (1700's)
They came West Africa .
Nigeria is the name of the British colony in West Africa.
Nigeria
Morocco's West Sahara.
Liberia, on the west coast of Africa.
Non
Namibia/ South West Africa
Liberia. (Since the 1970's there haven't been any Colonies in West Africa, though).
Portuguese Guinea (1474-1974)
There are no colonies left in Africa. The closest thing is West Sahara, which is partially controlled by Morocco.
After World War I, it was put under the control of South Africa and called South-West Africa. After gaining their independence in 1990, the country was renamed Namibia.
Namibia
West Africa was not a single colony, it was actually made up of many colonies owned by France, the UK, and Portugal. Ivory Coast (France) and Ghana (UK) both have considerable white populations, a remnant of settler colonialism.