Commonwealth of Nations is an organization of 53 countries across the globe. They were erstwhile British colonies. To improve the society and general well-being of the people is a major objective of the Commonwealth of Nations. This can be achieved through encouragement and assistance of education via sports development and physical recreation. To fulfill this there is a Commonwealth Games Federation that organizes a quadrennial sporting event among the member nations of the Commonwealth popularly known as
Commonwealth Games. Almost all Commonwealth countries participates in this mega multi-sports events with full enthusiasm.

There are currently 85 nations planning to field teams at the 2010 Commonwealth Games. This figure is the highest considering the past Commonwealth Games. This phenomenal increase in the number of participating nations has made this events the second biggest sporting event after Olympic Games. As we look back Commonwealth Games has started with participation of mere 11 nations and 400 athletes in 1930. In the last Commonwealth Games a total of 71 countries participated. Delhi is going to witness 8500 athletes from 85 countries. The list of countries is given below in alphabetical order.