Tadten (Hungarian: Mosontétény) is a village in the district of Neusiedl am See in Burgenland, Austria.

Tadten is a wine growing village with 1,234 inhabitants and lies at the transition from the Seewinkel region to the Hungarian puszta.

In 1357 Tadten, then called "Tetun", was mentioned in a conflict of possession by the Raab chapter.

A Roman Catholic church was built in 1804 under Count Esterhazy.

The area south of the village up to the state border at the artificial channel Einserkanal [de; hu; it; nl; pl] is covered by marshy meadows of the Hanság [ceb; de; hu; sv] landscape.