© Getty Images

Algeria -

Issad Rebrab & family

Net worth: US$7.5 billion

Source: Food

© Getty Images

Angola -

Isabel dos Santos

Net worth: US$1.5 billion

Source: Banking and investments

© Getty Images

Argentina -

Marcos Galperin

Net worth: US$5.4 billion

Source: E-commerce

© Getty Images

Australia -

Gina Rinehart

Net worth: US$15.8 billion

Source: Mining

© Getty Images

Austria -

Dietrich Mateschitz

Net worth: US$27.3 billion

Source: Red Bull

© Getty Images

China -

Jack Ma

Net worth: US$66.1 billion

Source: E-commerce

© Getty Images

Colombia -

Luis Carlos Sarmiento

Net worth: US$8.6 billion

Source: Banking

© Getty Images

Cyprus -

John Fredriksen

Net worth: US$9.7 billion

Source: Shipping

© Getty Images

Denmark -

Anders Holch Povlsen

Net worth: US$11.1 billion

Source: Fashion retail

© Getty Images

Egypt -

Nassef Sawiris

Net worth: US$6.9 billion

Source: Construction and chemicals

© Getty Images

Finland -

Antti Herlin

Net worth: US$6.6 billion

Source: Elevators and escalators

© Getty Images

France -

Bernard Arnault & family

Net worth: US$115 billion

Source: LVMH Moët Hennessy Louis Vuitton

© Getty Images

Georgia -

Bidzina Ivanishvili

Net worth: US$4.8 billion

Source: Investments 

© Getty Images

Greece -

Philip Niarchos

Net worth: US$2.8 billion

Source: Art collection

© Getty Images

Hong Kong -

Li Ka-shing

Net worth: US$28.5 billion

Source: Diversified

© Getty Images

Hungary -

Sándor Csány

Net worth: US$1.2 billion

Source: Finance and real estate

© Getty Images

Iceland -

Thor Bjorgolfsson

Net worth: US$2.2 billion

Source: Investments

© Getty Images

India -

Mukesh Ambani

Net worth: US$78.5 billion

Source: Diversified

© Getty Images

Ireland -

Pallonji Mistry

Net worth: US$12.2 billion

Source: Construction

© Getty Images

Israel -

Eyal Ofer

Net worth: US$8.2 billion

Source: Real estate and shipping

© Getty Images

Italy -

Giovanni Ferrero

Net worth: US$26.6 billion

Source: Nutella and chocolates

© Getty Images

Japan -

Tadashi Yanai & family

Net worth: US$35 billion

Source: Fashion retail

© Getty Images

Malaysia -

Robert Kuok (pictured, middle)

Net worth: US$10.8 billion

Source: Palm oil, shipping, and property

© Getty Images

Mexico -

Carlos Slim Helu & family

Net worth: US$50.4 billion

Source: Telecom

© Getty Images

Monaco -

David Nahmad

Net worth: US$1.9 billion

Source: Art collection

© Getty Images

Morocco -

Aziz Akhannouch & family

Net worth: US$3.5 billion

Source: Petroleum, diversified

© Getty Images

Nepal -

Binod Chaudhary

Net worth: US$1.5 billion

Source: Diversified

© Getty Images

Netherlands -

Charlene de Carvalho-Heineken & family

Net worth: US$14.4 billion

Source: Heineken

© Getty Images

New Zealand -

Graeme Hart

Net worth: US$12.5 billion

Source: Investments

© Getty Images

Nigeria -

Aliko Dangote

Net worth: US$9 billion

Source: Cement and sugar

© Getty Images

Philippines -

Manuel Villar

Net worth: US$5.8 billion

Source: Real estate

© Getty Images

Qatar -

Faisal Bin Qassim Al Thani

Net worth: US$1.4 billion

Source: Hotels, diversified

© Getty Images

Romania -

Ion Tiriac

Net worth: US$1.3 billion

Source: Banking and insurance

© Getty Images

Russia -

Vladimir Lisin

Net worth: US$23.4 billion

Source: Steel and transport

© Getty Images

South Africa -

Nicky Oppenheimer & family

Net worth: US$7.6 billion

Source: Diamonds

© Getty Images

Spain -

Amancio Ortega

Net worth: US$61.2 billion

Source: Zara

© Getty Images

Saint Kitts and Nevis -

Myron Wentz

Net worth: US$1.4 billion

Source: Health products

© Getty Images

Sweden -

Stefan Persson

Net worth: US$17.4 billion

Source: H&M

© Getty Images

Switzerland -

Gianluigi & Rafaela Aponte

Net worth: US$8.7 billion

Source: Shipping

© Getty Images

Taiwan -

Terry Gou

Net worth: US$6.3 billion

Source: Electronics

© Getty Images

Tanzania -

Mohammed Dewji

Net worth: US$1.6 billion

Source: Diversified

© Getty Images

Thailand -

Dhanin Chearavanont

Net worth: US$14 billion

Source: Diversified

© Getty Images

Turkey -

Murat Ulker

Net worth: US$4.8 billion

Source: Food

© Shutterstock

Ukraine -

Rinat Akhmetov

Net worth: US$3 billion

Source: Steel and coal

© Getty Images

United Kingdom -

James Ratcliffe

Net worth: US$18 billion

Source: Chemicals

(Photo: Wikimedia/CC BY-SA 3.0)

© Wikimedia/Creative Commons

United States -

Jeff Bezos

Net worth: US$189 billion

Source: Amazon

© Getty Images 

Venezuela -

Juan Carlos Escotet

Net worth: US$3.6 billion

Source: Banking

© Getty Images

Vietnam -

Phạm Nhật Vượng

Net worth: US$6.7 billion

Source: Diversified

(Photo: Wikimedia/CC BY-SA 4.0)

© Wikimedia/Creative Commons

References -

Forbes

© Getty Images/Creative Commons

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