Here is a list of the Name of the Generations … simply look for the year you were born and you can see which Generation you fall in.
The name of the generation may be slightly different when defined by different organizations, and may have slightly different years for inclusion into which group falls into which range of years.
Why might this be important information for you? When you read an article that is talking about a generation, is that your generation they are talking about? The links above are a handy reference to look up these definitions.
Just for fun: Where is the center of the U.S. Population from the 2010 census (and where has it been before)?