The Pokemon region introduced in Diamond, Pearl, and Platinum. Sinnoh is a large water rich regino that has its various different legends of mythical Pokemon. In the sea north of Sinnoh, a islande called the Battle Zone is home to strong Trainers and wild Pokemon from several different regions. Trainers from Sinnoh usually start with Turtwig, Chimchar, or Piplup, but recently have been given the option to start with Starly, Shinx, and Gible.

The Sinnoh region is moderated by: TsukiyomiIkuto_Yoru