Swedish tennis player

Elsa Wallenberg (née Lilliehöök, 26 January 1877 – 17 October 1951) was a Swedish tennis player who competed in the indoor singles event at the 1908 Summer Olympics. She reached the final in which she lost to eventual Olympic champions Gwendoline Eastlake-Smith. In the bronze medal match Wallenberg lost to compatriot Märtha Adlerstråhle.

She was married to Axel Wallenberg (1874-1963). They were the parents of Gustaf Wally.

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