The Holy Trinity Column is a memorial column in the town of Olomouc (also written Olmütz) in Moravia, in the east part of the Czech Republic. The Holy Trinity Column was erected by the local Catholic church in 1716-1754 in honour of God, as a thanksgiving for the end of a plaque that struck the Moravia region between 1714 and 1716.
The Holy Trinity Column of Olomouc is 35 meters tall. It is the biggest Baroque sculptural group in the Czech Republic. It was designed by a distinguished Moravian artist, Onderj Zahner. The consecration of the Holy Trinity Column was attended by Empress Maria Theresa and her husband Francis I. It was a source of great pride for the town of Olomouc, as its creation was the result of contribution of the townfolk.
The Holy Trinity Column of Olomouc was inscribed as a World Heritage Site during the 24th session of the World Heritage Committee held in Cairns, Australia, on 27 November to 2 December, 2000.