Tsushima (津島市, Tsushima-shi) is a city located in Aichi Prefecture in the Chūbu region of Japan.

Tsushima is located in far western Aichi Prefecture, on the alluvial plain of the Kiso Three Rivers.

Per Japanese census data,[3] the population of Tsushima has been relatively steady over the past 30 years.

Tsushima has a mayor-council form of government with a directly elected mayor and a unicameral city legislature of 18 members.

In terms of national politics, the city is part of Aichi District 9 of the lower house of the Diet of Japan.