30. Ho Ching, CEO of Temasek Holdings and wife of Singapore's Prime Minister Lee Hsien Loong
29. Britain's Queen Elizabeth
28. Conde Nast Publications artistic director and editor-in-chief of American Vogue Anna Wintour
27. Alphabet Chief Financial Officer Ruth Porat
26. Myanmar's State Counselor Aung San Suu Kyi
25. Chairman of the State Bank of India Arundhati Bhattacharya
24. Lockheed Martin's Chairman, President, and CEO Marillyn Hewson
23. The three female US Supreme Court Justices Ruth Bader Ginsburg (L), Sonia Sotomayor (2nd R) and Elena Kagan (R) (seen here with Sandra Day O'Connor, 2nd L)
22. Former Prime Minister of New Zealand and current Administrator of the United Nations Development Program Helen Clark
21. Media proprietor, producer and philanthropist Oprah Winfrey
20. Co-CEO of Oracle Safra Catz
19. European Union Foreign Policy Chief Federica Mogherini
18. Chile's President Michelle Bachelet
17. Taiwan President Tsai Ing-wen
16. President and CEO of Fidelity Investments Abigail Johnson
15. Apple Senior Vice President of retail and online stores Angela Ahrendts
14. PepsiCo CEO Indra Nooyi
13. US First Lady Michelle Obama
12. South Korean President Park Geun-hye
11. IBM Chairwoman, President and CEO Virginia "Ginni" Rometty
10. Chairman of Spanish bank Santander Ana Patricia Botin
9. CEO and President of Hewlett Packard Enterprise Meg Whitman
8. YouTube CEO Susan Wojcicki
7. Chief Operating Officer of Facebook Sheryl Sandberg
6. IMF Managing Director Christine Lagarde
5. General Motors CEO Mary Barra
4. Bill & Melinda Gates Foundation co-chair Melinda Gates
3. US Federal Reserve Board Chair Janet Yellen
2. Democratic presidential candidate Hillary Clinton
1: Germany's Chancellor Angela Merkel
