The Trentino Tyrolean Autonomist Union (Italian: Unione Autonomista Trentino Tirolese, UATT) was a regionalist Christian-democratic Italian political party based in Trentino which was active from 1982 to 1988.
In 1982 the Trentino Tyrolean People's Party broke up: the more conservative wing formed the UATT, while the more centrist wing formed Integral Autonomy. The leader of the conservative faction and thus of the UATT was Franco Tretter.[1]
In the 1983 provincial election the UATT won 8.2% of the vote, while Enrico Pruner's Integral Autonomy only the 3.1%.
In 1988 the two parties merged into the Trentino Tyrolean Autonomist Party, which gained 9.9% in the subsequent provincial election.