The Little Hungarian Plain or Little Alföld (Hungarian: Kisalföld [ˈkiʃɒlføld], Slovak: Malá dunajská kotlina, German: Kleine Ungarische Tiefebene) is a plain (tectonic basin) of approximately 8,000 km² in northwestern Hungary, south-western Slovakia (Podunajská nížina – Danubian Lowland), and eastern Austria.

In Hungary, it includes most of Győr-Moson-Sopron and Vas counties, and the western part of Komárom-Esztergom and Veszprém.

The plain is roughly cut in half by the Danube which is split up into many arms between Bratislava and Komárno, forming large islands.

The neighbouring regions of Kemeneshát, Sopron-Vas Plain and Steirisches Hügelland are sometimes classified as belonging to the Little Alföld, but Hungarian and Austrian geographers use the term in a more narrow meaning.

The southern part of it belonged to the Roman province of Pannonia between the 1st and 5th centuries and later was inhabited by Germanic and Slavic peoples and since about 900 also by Hungarians.