The species of Dytiscidae from the Miradores Lagoon in central Veracruz (Mexico) are identified and reported. The fauna in this artificial waterbody consists of 30 species from 17 genera and six subfamilies. This represents 15% and 42% of the previously reported species from Mexico and the state of Veracruz, respectively. The most species-rich subfamily was Hydroporinae with 14 species, followed by Laccophilinae (six species), Dytiscinae (four species), Copelatinae (three species), Colymbetinae (two species), and Cybistrinae (one species). The general habitat distribution showed that 28 species were present in the swamp, 14 in the shoreline, and nine in temporary holes. Eight species were found occurring in the three habitats. With regard to seasonality, 14 species (≈50%) were present during the entire year, while 14 species were present during the warm rainy and cold rainy seasons and two species were present during both the dry and rainy seasons. An annotated list and an illustrated key to the species of Dytiscidae from the Miradores Lagoon are provided.