Bertel Johan Sebastian, Baron Gripenberg, born 19 September 1878 in Saint Petersburg, died 6 May 1947, was a Finland-Swedish poet.

After that came a more militaristic and political period, in collections such as Under fanan (1918), Efter striden (1925) and Den stora tiden (1928).

Among his more prominent translations are Johannes Linnankoski's novel The Song of the Blood-Red Flower and Edgar Lee Masters' Spoon River Anthology.

[2] From an early age Gripenberg had a disdain for egalitarian thought and parliamentary democracy, and participated on the White side in the Finnish Civil War.

He participated in the Peasant March to Helsinki in the summer of 1930, but after that rarely took part in any public political activity.