Borský Svätý Jur (German: Bur-Sankt-Georg; Hungarian: Búrszentgyörgy) is a village and municipality in Senica District in the Trnava Region of western Slovakia.

It is mentioned in a deed wherebye Sigismund, Holy Roman Emperor granted Elesko castle and its demesnes to the Polish nobleman Stibor as a reward for his service.

The Hungarian name probably stems from the churches patron Saint George.

Before the Treaty of Trianon it was in the Malacka district of Pozsony county (comitatus) in the Kingdom of Hungary.

A Roman Catholic church of Saint George was built in 1676, and a chateau in 1844.