Sophie Margareta Zelow von Knorring, (28 September 1797 – 13 February 1848), was a Swedish novelist and noble. She is regarded as a pioneer of the realistic novel in Sweden. Most of her novels are romantic love stories in an aristocratic environment.
She was born as Sophie Margareta Zelow on 28 September 1797. She married colonel Baron Sebastian von Knorring. Her debut Cousinerna (The cousins) treats the subject of love opposite duty. She died on 13 February 1848.
Alongside Carl Jonas Love Almqvist, August Blanche, Fredrika Bremer and Emilie Flygare-Carlén, Sophie von Knorring dominated the Swedish realistic literature in the 1830s and 1840s.