Wilhelm Ramsay

Wilhelm Ramsay
Ramsay in 1915
Born(1865-01-20)20 January 1865
Died6 January 1928(1928-01-06) (aged 62)
Helsinki, Finland
NationalityFinnish
CitizenshipRussia (Finland)
Known forFennoscandia, Ijolite, Postjotnian, Timanide Orogen
Scientific career
FieldsGeology
InstitutionsSorbonne
University of Göttingen
University of Helsinki

Wilhelm Ramsay (20 January 1865 – 6 January 1928) was a Finnish geologist. He became a member of the Royal Swedish Academy of Sciences in 1914 and in 1915 was accepted into the Royal Physiographic Society in Lund. He coined the terms Fennoscandia (1900) and Postjotnian (1909). Ramsay also coined the term ijolite.

Together with Jakob Sederholm, Ramsay was a student of Fredrik Johan Wiik. Pentti Eskola was a student of Ramsay.