Tamási (Hungarian: Tamási járás) is a district in north-western part of Tolna County in Hungary.

Tamási is also the name of the town where the district seat is found.

The district is located in the Southern Transdanubia Statistical Region.

The number of the inhabited places in Tamási District is 32.

(ordered by population, as of 1 January 2013)[1] The bolded municipalities are cities, italics municipalities are large villages.