Tolna (, ; ) is an administrative county (comitatus or vármegye) in present-day Hungary as it was in the former Kingdom of Hungary. It lies in central Hungary, on the west bank of the river Danube. It shares borders with the Hungarian counties of Somogy, Fejér, Bács-Kiskun, and Baranya. The capital of Tolna county is Szekszárd. Its area is 3,703 km<sup>2</sup>.
Tolna (in Latin: comitatus Tolnensis) was also the name of a historic administrative county (comitatus) of the Kingdom of Hungary. Its territory, which was about the same as that of the present Tolna county, is now in central Hungary. The capital of the county was Szekszárd.
In 2015, Tolna had a population of 225,936 and the population density was .
Besides the Hungarian majority, the main minorities are the Germans (approx. 10,000) and Roma (8,500).
Total population (2011 census): 230,361<br /> Ethnic groups (2011 census): Identified themselves: 214,953 persons:
Approx. 32,000 persons in Tolna County did not declare their ethnic group at the 2011 census.
Religious adherence in the county according to 2011 census:
The Tolna County Council, elected at the 2024 local government elections, is made up of 15 counselors, with the following party composition:
Tolna County has 1 urban county, 10 towns, 5 large villages and 93 villages.
(ordered by population, as of 2011 census)
municipalities are large villages.