Kalmar Cathedral is in the city of Kalmar in Småland in southeast Sweden. Located in Stortorget Square, construction began in 1660. The Cathedral was designed for the Church of Sweden by architect Nicodemus Tessin.

Kalmar is a city in the southeast of Sweden, situated by the Baltic Sea. It had 41.388 inhabitants in 2020 and is the seat of Kalmar Municipality. It is also the capital of Kalmar County, which comprises 12 municipalities with a total of 236,399 inhabitants (2015). Kalmar is the third largest urban area in the province and cultural region of Småland.