Šúr is a national nature reserve in the Slovak municipalities of Svätý Jur and Chorvátsky Grob in the Pezinok District. The nature reserve covers an area of 655 ha and has a protective belt of 145 ha.

Pezinok District is a district in the Bratislava Region of western Slovakia The district had been established in 1996, from 1923 was its area part of Modra District. It is situated on the foothills of