Walburga Stemmer (March 1892 – October 1928) was a woman who had an affair with German field marshal Erwin Rommel and gave birth to his daughter, Gertrud Stemmer (later Mrs. Gertrud Pan), on 8 December 1913. Rommel's family put pressure on him to leave Stemmer and return to his fiancée Lucie Mollin, whom he soon married.
Stemmer died in 1928, when Rommel's wife Lucie was pregnant with the couple's son Manfred. Her cause of death was given as pneumonia, though it is generally accepted that she probably committed suicide.