The Dadu Plateau (Chinese: 大肚台地), also known as Dadu Mountain or Dadushan (Chinese: 大肚山; Pe̍h-ōe-jī: Tōa-tō͘-soaⁿ), is a plateau that stretches across Taichung, Taiwan. It borders the Taichung Basin in the east and the seacoast of Taichung in the west, and lies between the Dajia River and the Dadu River. The plateau is long and narrow, with a length of about 20 km and a width of about 5 to 7 km.