http://en.wikipedia.org/wiki/Savannah
Apparently I'm a plain on Africa except that is spelled Savanna and not Svannah.
I'm also a city in Georgia (I was named after Savannah, GA :B),
Missouri,
New York,
Tennessee,
and if you spell it Savanna, Illinois
And I'm a rivier

I'm also a breed of cat
A TV series

Wow...
xD