Solveig Adina Olena Rönn-Christiansson (11 November 1902 – 8 June 1982) was a Swedish politician and trade unionist.

Solveig Rönn-Christiansson was born in Gothenburg as one of ten children to lamplighter Olof Natanael Ståhle Rönn and Alma Charlotta Johansdotter.

She herself commented on the fact that she escaped a prison sentence: In parallel to her union work, she became engaged in the Communist Party.

When the sympathy for Communists grew after the Russians' victory over Nazi Germany, she was able to win back her Parliament seat in 1945.

After leaving her seat in Parliament in 1958, Solveig Rönn-Christiansson worked as a janitor at Sahlgrenska University Hospital.