The Tsuwano Domain (津和野藩 Tsuwano-han) was a Japanese domain of the Edo period. It was associated with Iwami Province in modern-day Shimane Prefecture.
In the han system, Tsuwano was a political and economic abstraction based on periodic cadastral surveys and projected agricultural yields. In other words, the domain was defined in terms of kokudaka, not land area. This was different from the feudalism of the West.
The Meiji-era author Mori ?gai was the son of a Tsuwano retainer.
The hereditary daimy?s were head of the clan and head of the domain.