Making a total of 21 female leaders of developed and under developed nations in the world.
Female world leaders have always existed and have shown strength and courage in leading their countries to greater heights. And apart from the great monarchs like the Queens of England, scotland, etc, who were born into royalty and thrust into leadership positions (although majority now perform only ceremonial duties), quite a number of women have been either appointed or elected by ordinary citizens, as presidents and prime ministers.
Here are six notable Female world leaders we have today:
Ellen Johnson Sirleaf - President of Liberia
From Jan 16 2006 - present
Park Geun-hye - President of South Korea
From Feb 29 2013 - present
From Nov 22 2005- present
Sheikh Hasina Wajed - Prime Minister of Bangladesh
From Jan 6 2009 - present
Portia Simpson Miller- Prime Minister of Jamaica
From Jan 5 2012 - present
Catherine Samba-Panda - President of Central African Republic
From Jan 23 2014 - present
The other countries with current female presidents and prime ministers are:
Trinidad and Tobago, Kosovo, Denmark,Slovenia , Cyprus (North), Senagal, Norway, Latvia,Chile, Malta, Lithuania, Poland, Switzerland, Croatia and Brazil(although she isn't functioning now due to ongoing impeachment trial).
Source: rulers.org