American Football Japanese league
 

Does anyone have a list of teams and the regions/cities they're from?

As far as college football goes...

The Kansai League is the college football league in West-Japan. The champion of the Kansai League plays against the champion of the Kanto League


Kansai League:

Ritsumeikan University Panthers
Kwansei Gakuin University Fighters
Kobe University Ravens
Kyoto University Gangsters
Kansai University Kaisers
Konan University Red Gang
Kinki University Devils
Doshisha University Wild Rover

The Kanto League is the college football league in East-Japan.

Kanto League:

Nihon University Phoenix
Waseda University Big Bears
Keio University Unicorns
Senshu University Green Machine
Tokai University Tritons
Tokyo University Warriors
Tokyo Gakugei University Snails
Hitotsubashi University Crimson

The champion of Kanto League champs vs Kansai League champion faces the X-League. The X-League is a semi-professional American football league in Japan.

The X-League:

Onward Oaks
Fujitsu Frontiers
Asahi Beer Silver Star
Meiji Yasuda Pirates
Renesas Hurricanes
Fuji Xerox Minerva AFC