Siedlce Voivodeship was an administrative region in eastern Poland from 1999 until 2001. It was created as part of a major administrative reform that reorganized the country's provinces. The capital city of the voivodeship was Siedlce, which served as a cultural and economic center for the area. The voivodeship covered a diverse landscape, including agricultural lands and forests. It was bordered by several other voivodeships, including Mazowieckie to the west and Lublin to the south. In 2001, Siedlce Voivodeship was dissolved, and its territory was incorporated into the Masovian Voivodeship.