Svatý Jan pod Skalou (German: St. Johann unter dem Felsen) is a municipality and village in Beroun District in the Central Bohemian Region of the Czech Republic.

According to legend, Ivan, the very first Czech Christian hermit, settled in a cave under a rock in the area of Svatý Jan in the 9th century.

Ivan then visited Duke Bořivoj I and revealed to him God's message that he should build a church with St. John the Baptist as his patron saint.

[3] The first written mention of Svatý Jan is from 1037, when Ivan's cave with hermitage, grave and chapel was acquired by the Ostrov Monastery in Davle from Duke Bretislav I.

The premises of the former monastery now houses St. John College – Higher Vocational School of Pedagogy.

In the second half of the 15th century, the Church of the Nativity of St. John the Baptist was built next to the St. Ivan's cave.

The old church was then replaced by a new one built by Carlo Lurago in 1661, then it was reconstructed by Kilian Ignaz Dientzenhofer in 1710–1711.