Africa is not one big country. It is made up of many small nations. Therefore, the names of the leaders vary and what they are called also vary. Because of this your question can not be given an answer. You need to pick one country to ask about.
Kapu is the Leader of the Wolfs
Their group is called a pride.
Victoria Falls is a large waterfall in Africa.
Newborn Bush Babies are called bushels in most countries except for Africa, where they are called Gala.
Corm is also called mealies in the Southern parts of Africa.
Africa is a continent with over 50 countries. Many of those are in the east of Africa. Each of those countries has their own leader, so there is no single leader of east Africa.
Africa does not have a leader, because Africa is not a country. Africa is a continent. Continents have countries in them.
A leader
NO
The leader of the dominant Party, the African National Congress, and the State President of South Africa is Jacob Zuma.
Mahatma Gandhi
No, the leader of the senate is called the majority leader.
The leader of Konoha is called the Hokage. The leader of Suna is called the Kazekage. The leader of Kirigakure (hidden mist) is called the Mizukage. The leader of Kumogakure (Clouds) is known as the Raikage.
Africa is a continent with more than 50 countries and hundreds of languages, so there are a huge amount of ways that leader could be said in Africa, depending on which of those hundreds of languages you are choosing from.
Africa doesn't have a government, but all the countries which make up the continent do.
Africa is a continent, not a country; this said, Africa does not have a leader: like it is done in Europe, Asia or elsewhere, every country (there are many of them) elects it's president after a certain period of time.
They called their leader the Sapa Inca.