Wasastjerna

Wasastjerna is a Swedish-language surname. As of 2 February 2026^[update], Wasastjerna is the surname of 61 Finnish citizens.^[1] Notable people with the surname include:

• Jarl Axel Wasastjerna (1896–1972), Finnish physicist
• Knut Wasastjerna [fi; sv] (1867–1935), Finnish architect who co-founded Grahn, Hedman & Wasastjerna
• Oskar Wasastjerna (1819–1889), Finnish soldier, civil servant, genealogist, historian and writer
• Torsten Wasastjerna (1863–1924), Finnish painter