Renée Brand (née Renate Johanna Brand, also Renée Johanna Brand-Sommerfeld, pseudonym Yolan Mervelt) (born February 22, 1900, in Berlin; died November 5, 1980, in San Francisco) was a German-Jewish writer and psychologist.
She dropped out of her studies on the occasion of her marriage in 1922 to the Berlin contractor Adolf Sommerfeld, who was patron of the Bauhaus and knew a number of artists of the Weimar Republic.
In Berlin-Dahlem they lived in a house built by Walter Gropius and Adolf Meyer, the Blockhaus Sommerfeld (Limonenstraße 30, 12203 Berlin, destroyed).
Renée Brand then went into exile with her son in 1941 in the US, where a year later the translation of no man's land was published under the title Short Days Ago.
With lectures and the publication of specialist literature, she dealt in particular with the works of Erich Neumann and advised on the translation of his texts.