Valentine Mathilde Amélie Thomson (3 June 1881 – 15 January 1944) was an influential French journalist, playwright and editor, who was active both in Europe and the United States.
Daughter of the left-wing politician Gaston Thomson, in 1919 she was a delegate at the Inter-Allied Women's Conference which sought to introduce women's issues to the peace process following the end of the First World War.
In Paris, in collaboration with her husband, the journalist and screenwriter André Jaeger-Schmidt (1884–1940), she wrote plays which were staged in Paris and the provinces.
In the late 1920s she moved to the United States where she wrote about international politics for a variety of papers including the New York Times and Harper's Magazine.
She was also known for the salons she held with prominent figures of her times.