In total, there are 216 countries in the world including 190 undisputed countries and 16 countries whose sovereignty is disputed.
If you want to know the name of these countries please follow this link :http://en.wikipedia.org/wiki/List_of_sovereign_states

There are 196 countries in total when we talk about the world. If you wish to know all the names of those countries here is the link for you.

>>>>>>http://geography.about.com/od/countryinformation/a/capitals.htm

In total, there are 216 countries in the world including 190 undisputed countries and 16 countries whose sovereignty is disputed.
If you want to know the name of these countries please follow this link :http://en.wikipedia.org/wiki/Number_of_countries_on_earth