The list was released on Wednesday.
Dangote’s estimated $10.3 billion net worth is nearly $2 billion less than a year ago.
Another Nigerian, Folorunsho Alakija was one of the billionaires, who suffered a drop in their net worth between last year and this year, as she held No 19 on the 20-man list.

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Nigeria’s Aliko Dangote has retained his place as the richest man in Africa.
Dangote remain number one on the newly released Forbes’ list of African billionaires.
He however, lost almost $2bn compared to his last year’s worth.

The rating magazine report that, Alakija’s net worth dropped due to a decline in the value of one of Nigeria’s most productive oil fields.
However, Mike Adenuga, the owner of Globacom, emerged Africa’s second richest man. He is worth an estimated $9.2 billion.
Others are Nigeria’s cement mogul Abdulsamad Rabiu, who runs and owns the BUA Group, standing at number 16 on the list for the first time since 2015.
See top 20:
1. Aliko Dangote $10.3b cement, sugar, flour
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2.Mike Adenuga $9.2b telecom,
oil.

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3. Nicky Oppenheimer $7.3b diamonds
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4. Nassef Sawiris $6.3b construction, chemicals
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5. Johann Rupert $5.3b luxury goods
6.Issad Rebrab $3.7b food
7. Naguib Sawiris $2.9b 64 telecom
8.Koos Bekker $2.3b media, investments
9. Isabel dos Santos $2.3b investments
10. Mohamed Mansour $2.3b diversified
11. Strive Masiyiwa $2.3b telecom
12. Patrice Motsepe $2.3 mining
13. Aziz Akhannouch $2.1b petroleum, diversified
14. Mohammed Dewji $1.9b diversified
15. Othman Benjelloun $1.7b banking, insurance
16. Abdulsamad Rabiu $1.6b cement, sugar
17. Yasseen Mansour $1.5b diversified
18. Youssef Mansour $1.2b diversified

19. Folorunsho Alakija$1.1 B68oil
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20. Michiel Le Roux