Kaisaniemi park (Finnish: Kaisaniemen puisto, Swedish: Kajsaniemiparken) is a popular park, in the center of Helsinki, in the region of Kluuvi. The Kaisaniemi Park was named after Catharina "Cajsa" Wahllund.^[1] Part of the park was given to the University of Helsinki in 1829, for gardening. The oldest greenhouse was opened in 1889.

In the park, is the oldest public memorial in Helsinki, called Freemason's Grave, there's also a football pitch, basketball and tennis courts.

It is a place of several events, including concerts, the World Village event and The Tuska Open Air metal festival, which was held there from 2001 to 2010.

It usually hosts the Helsinki Day concert. It also hosted the Norwegian pop duo Marcus and Martinus in June 2018.

Kaisaniemi park has been in media attention because of problems with criminality, especially with drug use and trade. The problem with criminality has got worse during the park multi-year renovation in the beginning of the 2020s.^[2][3]

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  Fountain with the national theater in the background, 1912
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  View with the Kallio Church in the background, 1912
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  View from Vuorikatu street
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  View from east-south
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  Sandfield, usually occupied by the soccer players
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  The basketball season is over
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  A panorama
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  View from the pond

• virtualhelsinki.fi, Historical tour in Kaisaniemi park
• Kaisaniemi WebCam
• Helsingin Sanomien korttelisarja
• Kotuksen kaupunkinimistön historia

60°10′29″N 24°56′45″E / 60.17472°N 24.94583°E / 60.17472; 24.94583