| Las 100 personas más ricas del mundo en 2005 según Forbes |
| NOTA: En los EE.UU,un billón es un millar de millones |
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| TOP | NOMBRE | País/Origen | Edad | Capital $ ($bil) | Residencia |
| 1 | William Gates III | United States | 50 | 50.0 | United States |
| 2 | Warren Buffett | United States | 75 | 42.0 | United States |
| 3 | Carlos Slim Helu | Mexico | 66 | 30.0 | Mexico |
| 4 | Ingvar Kamprad | Sweden | 79 | 28.0 | Switzerland |
| 5 | Lakshmi Mittal | India | 55 | 23.5 | United Kingdom |
| 6 | Paul Allen | United States | 53 | 22.0 | United States |
| 7 | Bernard Arnault | France | 57 | 21.5 | France |
| 8 | Prince Alwaleed Bin Talal Alsaud | Saudi Arabia | 49 | 20.0 | Saudi Arabia |
| 9 | Kenneth Thomson & family | Canada | 82 | 19.6 | Canada |
| 10 | Li Ka-shing | Hong Kong | 77 | 18.8 | Hong Kong |
| 11 | Roman Abramovich | Russia | 39 | 18.2 | United Kingdom |
| 12 | Michael Dell | United States | 41 | 17.1 | United States |
| 13 | Karl Albrecht | Germany | 86 | 17.0 | Germany |
| 14 | Sheldon Adelson | United States | 72 | 16.1 | United States |
| 15 | Liliane Bettencourt | France | 83 | 16.0 | France |
| 15 | Lawrence Ellison | United States | 61 | 16.0 | United States |
| 17 | Christy Walton | United States | 51 | 15.9 | United States |
| 18 | Jim Walton | United States | 58 | 15.9 | United States |
| 19 | S Robson Walton | United States | 62 | 15.8 | United States |
| 20 | Alice Walton | United States | 56 | 15.7 | United States |
| 21 | Helen Walton | United States | 86 | 15.6 | United States |
| 22 | Theo Albrecht | Germany | 83 | 15.2 | Germany |
| 23 | Amancio Ortega | Spain | 70 | 14.8 | Spain |
| 24 | Steven Ballmer | United States | 50 | 13.6 | United States |
| 25 | Azim Premji | India | 60 | 13.3 | India |
| 26 | Sergey Brin | United States | 32 | 12.9 | United States |
| 27 | Larry Page | United States | 33 | 12.8 | United States |
| 28 | Abigail Johnson | United States | 44 | 12.5 | United States |
| 29 | Nasser Al-Kharafi & family | Kuwait | 62 | 12.4 | Kuwait |
| 30 | Barbara Cox Anthony | United States | 82 | 12.4 | United States |
| 31 | Anne Cox Chambers | United States | 86 | 12.4 | United States |
| 32 | Stefan Persson | Sweden | 58 | 12.3 | Sweden |
| 33 | Charles Koch | United States | 70 | 12.0 | United States |
| 34 | David Koch | United States | 65 | 12.0 | United States |
| 35 | Raymond, Thomas & Walter Kwok | Hong Kong | NA | 11.6 | Hong Kong |
| 36 | Adolf Merckle | Germany | 71 | 11.5 | Germany |
| 37 | Sulaiman Bin Abdul Al Rajhi | Saudi Arabia | 86 | 11.0 | Saudi Arabia |
| 38 | Vagit Alekperov | Russia | 55 | 11.0 | Russia |
| 39 | Silvio Berlusconi | Italy | 69 | 11.0 | Italy |
| 40 | Lee Shau Kee | Hong Kong | 78 | 11.0 | Hong Kong |
| 41 | Vladimir Lisin | Russia | 49 | 10.7 | Russia |
| 42 | Michael Otto & family | Germany | 62 | 10.4 | Germany |
| 43 | Pierre Omidyar | United States | 38 | 10.1 | United States |
| 44 | Leonardo Del Vecchio | Italy | 70 | 10.0 | Italy |
| 45 | Michele Ferrero & family | Italy | 79 | 10.0 | Monaco |
| 46 | Forrest Mars Jr | United States | 74 | 10.0 | United States |
| 47 | Jacqueline Mars | United States | 66 | 10.0 | United States |
| 48 | John Mars | United States | 69 | 10.0 | United States |
| 49 | Viktor Vekselberg | Russia | 48 | 10.0 | Russia |
| 50 | Mikhail Fridman | Russia | 41 | 9.7 | Russia |
| 51 | Spiro Latsis & family | Greece | 59 | 9.1 | Switzerland |
| 52 | John Kluge | United States | 91 | 9.0 | United States |
| 53 | Carl Icahn | United States | 70 | 8.7 | United States |
| 54 | Kirk Kerkorian | United States | 88 | 8.7 | United States |
| 55 | Birgit Rausing & family | Sweden | 82 | 8.6 | Switzerland |
| 56 | Mukesh Ambani | India | 48 | 8.5 | India |
| 57 | Serge Dassault & family | France | 80 | 8.5 | France |
| 58 | Hans Rausing | Sweden | 80 | 8.5 | United Kingdom |
| 59 | Galen Weston & family | Canada | 65 | 8.4 | Canada |
| 60 | Susanne Klatten | Germany | 43 | 8.1 | Germany |
| 61 | Rudolf August Oetker & family | Germany | 89 | 8.0 | Germany |
| 62 | Oleg Deripaska | Russia | 37 | 7.8 | Russia |
| 63 | Sumner Redstone | United States | 82 | 7.7 | United States |
| 64 | Alexei Mordashov | Russia | 40 | 7.6 | Russia |
| 65 | Donald Newhouse | United States | 76 | 7.5 | United States |
| 66 | Samuel Newhouse Jr | United States | 78 | 7.5 | United States |
| 67 | Alain & Gerard Wertheimer | France | NA | 7.5 | France |
| 68 | Reinhold Würth | Germany | 70 | 7.5 | Germany |
| 69 | Joseph & Moise Safra | Brazil | NA | 7.4 | Brazil |
| 70 | Philip Knight | United States | 68 | 7.3 | United States |
| 71 | George Soros | United States | 75 | 7.2 | United States |
| 72 | Ernesto Bertarelli | Switzerland | 40 | 7.1 | Switzerland |
| 73 | Suleiman Kerimov | Russia | 40 | 7.1 | Russia |
| 74 | Philip & Cristina Green | United Kingdom | NA | 7.0 | Monaco |
| 75 | Francois Pinault | France | 69 | 7.0 | France |
| 76 | August von Finck | Germany | 76 | 7.0 | Switzerland |
| 77 | Mohammed Al Amoudi | Saudi Arabia | 60 | 6.9 | Saudi Arabia |
| 78 | Abdul Aziz Al Ghurair & family | United Arab Emirates | 52 | 6.9 | United Arab Emirates |
| 79 | Maria-Elisabeth & Georg Schaeffler | Germany | NA | 6.8 | Germany |
| 80 | Charles Ergen | United States | 53 | 6.7 | United States |
| 81 | Edward Johnson III | United States | 75 | 6.7 | United States |
| 82 | Kun-Hee Lee & family | South Korea | 64 | 6.6 | South Korea |
| 83 | Stefan Quandt | Germany | 40 | 6.6 | Germany |
| 84 | Saleh Bin Abdul Aziz Al Rajhi | Saudi Arabia | 94 | 6.5 | Saudi Arabia |
| 85 | Rafael del Pino & family | Spain | 85 | 6.5 | Spain |
| 86 | Stanley Ho | Hong Kong | 84 | 6.5 | Hong Kong |
| 87 | Maersk Mc-Kinney Moller | Denmark | 92 | 6.5 | Denmark |
| 88 | Keith Murdoch | United States | 75 | 6.5 | United States |
| 89 | Philip Anschutz | United States | 66 | 6.4 | United States |
| 90 | Hasso Plattner | Germany | 62 | 6.4 | Germany |
| 91 | Vladimir Potanin | Russia | 45 | 6.4 | Russia |
| 92 | Mikhail Prokhorov | Russia | 40 | 6.4 | Russia |
| 93 | Vladimir Yevtushenkov | Russia | 57 | 6.3 | Russia |
| 94 | Micky Arison | United States | 56 | 6.1 | United States |
| 95 | Curt Engelhorn | Germany | 79 | 6.1 | Switzerland |
| 96 | Friedrich Flick Jr | Germany | 79 | 6.1 | Austria |
| 97 | German Khan | Russia | 44 | 6.1 | Russia |
| 98 | Ronald Perelman | United States | 63 | 6.1 | United States |
| 99 | Johanna Quandt | Germany | 78 | 6.1 | Germany |
| 100 | Dan Duncan | United States | 73 | 6.0 | United States |