1: Germany's Chancellor Angela Merkel is the most powerful woman in the world right now, according to the latest ranking from Forbes. The ranking is a combination of two scores: visibility--by press mentions--and the size of the organization or country the women lead. REUTERS/Sebastien Pirlet

2: Former U.S. Secretary of State Hillary Clinton is second. REUTERS/Kevin Lamarque

3: Melinda Gates, Co-Chair of the Bill and Melinda Gates Foundation. REUTERS/Suzanne Plunkett

4: U.S. Federal Reserve Chair Janet Yellen. REUTERS/Jonathan Ernst

5: General Motors chief executive Mary Barra. REUTERS/Carlos Osorio/Pool

6: International Monetary Fund managing director Christine Lagarde. REUTERS/Ueslei Marcelino

7: Brazil's President Dilma Rousseff is third. REUTERS/Ueslei Marcelino

9: YouTube CEO Susan Wojcicki. REUTERS/Stephen Lam

10: U.S. first lady Michelle Obama. REUTERS/Joshua Roberts

11: South Korean President Park Geun-Hye. REUTERS/Damir Sagolj

12: Oprah Winfrey. REUTERS/Siphiwe Sibeko

13: IBM CEO Virginia Rometty. REUTERS/Brendan McDermid

14: Hewlett-Packard CEO Meg Whitman. REUTERS/David McNew

15: PepsiCo Chairman and Chief Executive Officer Indra Nooyi. REUTERS/Mike Segar

16: Argentina's President Cristina Fernandez. REUTERS/Bruno Domingos

17: Mondelez International Chairman and CEO Irene Rosenfeld. REUTERS/Jacky Naegelen

18: Santander Group chair Ana-Patricia Botin REUTERS/Paul Hackett

19: President and CEO of Fidelity Investments Abigail Johnson. REUTERS/Brian Snyder

20: Lockheed Martin Chairman and CEO Marillyn A. Hewson. REUTERS/Neil Hall

21: Beyonce. REUTERS/Gary Hershorn

22: Yahoo CEO Marissa Mayer. REUTERS/Denis Balibouse

23: UN Development Program Administrator Helen Clark. REUTERS/Ueslei Marcelino