Świętojańsko (Polish pronunciation: [ɕfjɛntɔˈjaj̃skɔ]) is a village in western Poland, located in the administrative district of Gmina Krzeszyce, within Sulęcin County, Lubusz Voivodeship. It lies approximately 16 kilometres (10 miles) north of Sulęcin and 23 kilometres (14 miles) south-west of Gorzów Wielkopolski.
The village has a population of approximately 60 residents. Historically, between 1975 and 1998, Świętojańsko was administratively part of the Gorzów Voivodeship. Its former German name was Sankt Johannes (St. John), which corresponds to the Polish name's etymological root — "świętojański" meaning "St. John's."
The village contains a Jewish cemetery, which is noted as a local historical site.
