Senec (Hungarian: Szenc, German: Wartberg) is a town in the Bratislava Region of south-western Slovakia.

[5] Throughout its history the town name's form changed multiple times, in 1252 being written as Zemch, in 1451 as Sencz.

The name is supposedly derived from a fortified hill upon which the Church of Saint Nicholaus stands to this day.

In the second half of the 15th century, Hungarian king Matthias Corvinus gave Senec privileges and it got the right of organizing a fair around 1480.

After the Austro-Hungarian army disintegrated in November 1918, Czechoslovak troops occupied the area, later acknowledged internationally by the Treaty of Trianon.

It has good access to the motorway D1 from Bratislava to Žilina, and is situated on the significant 4th Corridor of Trans-European Transport Network Railway route Prague–Bratislava–Balkans/Orient.

[7] The town consists of four boroughs (Senec, Svätý Martin, Červený majer and Horný dvor).