Komárno District (Slovak: okres Komárno, Hungarian: Komáromi járás) is a district in the Nitra Region of western Slovakia.

Until 1918, the district was mostly part of the Komárom county within the Kingdom of Hungary.

The district has a population of 108.556 of which 74.976 (69.1%) are Hungarians and 30.079 (27.7%) are Slovaks (2001).

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This Nitra Region geography article is a stub.