How do you say Japan in Japanese?

I heard some people say nihon and some people say nippon. Which one is right?

Japan is normally referred to as nihon. Nippon is used when there is an intention to stress national pride. You will commonly see this on the track suits of Japanese teams, for example. Otherwise, nihon is used more than 90% of the time.

I think nippon is kind of an old word. In older textbooks (from the 70´s) you´ll find only the term nippon but I haven´t heard any japanese refering to his/her country other than nihon.

No law stipulates which is right, Nihon or Nippon.

Nippon is used when there is an intention to stress national pride.
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It pronounces with "nippon" formally.
At the announcement school, when "nippon" was right, it learned.
However, it is ambiguous now.
In a usual life, whichever it pronounces, it is not a mistake.

Either way is fine. "Nihon" is used more often, or Nihon is the normal way of saying it.

WHere I see/hear "Nippon" used: on postage stamps, on Japan team uniform at Olympic games, and said by government officials, and NHK (Japan Broadcasing Corporation) news broadcaster.

i think its nihongo

Nihongo means Japanese....

To be precise, "Japanese language".

Nippon was the name Japan used prior to the 20th century. And stopped using it as much, around after world war II ended. because during that era.. Japan was NOT called "Nihon" it was "Dainippon Teikoku" (lit. Great Empire of Japan.) After then its been cut down to just "Nippon", or "Nihon".
but its really just away to say Old world/new world blah..blah..