Twenty people are killed in Handlová, Trenčín Region, in the deadliest mining disaster in Slovakia's history.

Handlová is a town in the Prievidza District, Trenčín Region in the middle of Slovakia. It is made up of the three parts Handlová, Nová Lehota and Morovno.

The Trenčín Region is one of the eight Slovak administrative regions. It consists of nine districts (okresy). The region was established in 1996: previously it had been a part of the West Slovak Region and partly the Central Slovak Region. Industry is a major sector of the region's economy.

The 2009 Handlová mine blast occurred on 10 August 2009 roughly 330 metres (1,080 ft) underground in Trenčín Region, Slovakia at Hornonitrianske Bane Prievidza, a.s.s (HNB) coal mine located in the town of Handlová. Twenty people were killed, nine others suffered minor injuries and were taken to hospital for treatment. Some historians have called the disaster the largest mining tragedy in Slovakia’s history. The deadly explosion, probably caused by flammable gases, occurred after mine rescuers had earlier been deployed to extinguish a fire in the Eastern shaft of the mine.

Slovakia, officially the Slovak Republic, is a landlocked country in Central Europe. It is bordered by Poland to the north, Ukraine to the east, Hungary to the south, Austria to the west, and the Czech Republic to the northwest. Slovakia's mostly mountainous territory spans about 49,000 km² (19,000 sq mi), hosting a population exceeding 5.4 million. The capital and largest city is Bratislava, while the second largest city is Košice.