Kostomlaty may refer to the following locations in the Czech Republic:
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Kostomlaty nad Labem
Kostomlaty nad Labem () is a municipality and village in Nymburk District in the Central Bohemian Region of the Czech Republic. It has about 1,900 inhabitants.
Administrative division
Kostomlaty nad Labem consists of five municipal parts (in brack ...
, a village in Nymburk District
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Kostomlaty pod Milešovkou, a village in Teplice District
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Kostomlaty pod Řípem, a village in Litoměřice District
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