Gerda Ryti ( Serlachius; 11 October 1886 – 8 September 1984) was the wife of Finland's fifth president, Risto Ryti, serving as the First Lady of Finland from 1940 until 1944.
Gerda Paula Serlachius was born as the second child to Senator and Justice Counselor (Oikeusneuvos) and Paula Söderhjelm. Her elder brother was , who became a lawyer and, later, Minister of Justice.
She received her primary and secondary education in her native Swedish. She went on to study German language, literature and history of art at a university in Dresden, Germany, and later English language in London.
In 1916, she married her brother's business partner, the lawyer and politician, and future President of Finland, Risto Ryti. The couple had three children.
