Ester Ståhlberg, née Elfving (February 17, 1870 – July 21, 1950) was a Finnish writer and educator and the first First Lady of Finland. She was the wife of president Kaarlo Juho Ståhlberg.
The daughter of Karl Oskar Elfving, mayor, and Jenny Nyman, she was born Ester Elfving in Vaasa, went on to study in Oulu and then continued with post-graduate studies in Helsinki. For a time, she taught Swedish.
On October 14, 1930, at approximately 9:00 am EET, former and first President of Finland, Kaarlo Juho Ståhlberg, and his wife, Ester Ståhlberg, were abducted near their home in Helsinki, Finland, by members of the far-right Lapua Movement.
The plan was spearheaded by ex-White Guard general Kurt Martti Wallenius. The kidnappers threatened to execute both hostages if their demands were not met, but were ultimately hesitant to carry out the threat. The pair were taken by car to Joensuu in Eastern Finland, where they were abruptly set free after the kidnappers failed to meet up with other accomplices.