Below is a list of world's top 10 richest people according to Forbes. Jeff Bezos (Amazon CEO) became the richest person in the world in October 2017. The eight of the world's 10 wealthiest people are American citizens.

 jeffbezos 1. Jeff Bezos
Net worth: $95 billion (11/2017)
Source of wealth: Amazon.com
Citizenship: USA
Born: January 12, 1964
Education: Princeton University
Spouse: MacKenzie Bezos
Children: Three sons and one daughter
Bill Gates 2. Bill Gates
Net worth: $89 billion (11/2017)
Source of wealth: Microsoft
Citizenship: USA
Born: October 28, 1955, Seattle
Spouse: Melinda Gates
Education: Harvard College, Harvard University, Lakeside School
Warren Buffett 3. Warren Buffett
Net worth: $78 billion (11/2017)
Source of wealth: Berkshire Hathaway
Citizenship: USA
Born: August 30, 1930, Omaha
Education: University of Nebraska Lincoln, Columbia University
Spouse: Astrid Menks (m. 2006), Susan Buffett (m. 1952–2004)
Amancio Ortega 4. Amancio Ortega
Net worth: $75 billion (11/2017)
Source of wealth: Inditex Group
Citizenship: Spain
Born: March 28, 1936, León, Spain
Spouse: Rosalia Mera (m. 1966–1986)
 MarkZuck 5. Mark Zuckerberg
Net worth: $74 billion (11/2017)
Source of wealth: Facebook
Citizenship: USA
Born: May 14, ‎1984
Education: Harvard University
Spouse: Priscilla Chan
Children: Maxima Chan Zuckerberg
Carlos Slim 6. Carlos Slim
Net worth: $66 billion (11/2017)
Source of wealth: Telmex, América Móvil, Grupo Carso
Citizenship: Mexico
Born: January 28, 1940, Mexico City
Education: National Autonomous University of Mexico
Spouse: Soumaya Domit Gemayel (1967–1999)
Children: Carlos Slim Domit, Soumaya Slim Domit, Vanessa Slim Domit, Johanna Slim Domit, Patrick Slim Domit, Marco Antonio Slim Domit.
  7. Bernard Arnault
Net worth: $63 billion (11/2017)
Source of wealth: LVMH (Christian Dior is the main holding company of LVMH)
Citizenship: France
Born: March 5, 1949
Education: Ecole Polytechnique de Paris
Spouse: Anne Dewavrin (1973–1990), Helene Mercier (1991)
Lawrence Ellison 8. Lawrence Ellison
Net worth: $69 billion (11/2017)
Source of wealth: Oracle Corporation
Citizenship: USA
Born: August 17, 1944, Manhattan
Spouse: Melanie Craft (2003–2010), Barbara Broothe (1983–1986), Nancy Wheeler Jenkins (1977–1978), Adda Quinn (1967–1974)
  9. Larry Page
Net worth: $49 billion (11/2017)
Source of wealth: Google
Citizenship: USA
Born: March 26, 1973
Education: East Lansing High School, Montessori Radmoor, Stanford University, University of Michigan
Spouse: Lucinda Southworth
Ch Koch 10. Charles Koch
Net worth: $48 billion (11/2017)
Source of wealth: Koch Industries, Inc.
Citizenship: USA
Education: Massachusetts Institute of Technology
Born: November 1, 1935, Wichita, Kansas
Spouse: Elizabeth B. Koch (m. 1972)
D Koch 10. David Koch
Net worth: $48 billion (11/2017)
Source of wealth: Koch Industries, Inc.
Citizenship: USA
Education: Massachusetts Institute of Technology
Born: May 3, 1940, Wichita, Kansas
Spouse: Julia Margaret Flesher (m. 1996)