Elisabeth Tamm (30 June 1880, at the manor Fogelstad in Julita, Södermanlands län – 23 September 1958) was a Swedish liberal politician and women's rights activist.

She was the eldest daughter and heiress of the Parliamentarian and landowner August Tamm and Baroness Emma Åkerhielm af Margrethelund.

She was chairman of the independent politically unaffiliated women's organisation Frisinnade kvinnors riksförbund of Södermanland from 1922 to 1931, and municipal communal speaker for Julita from 1933 to 1936.

In 1921, she became one of the five first women to be elected to the Swedish Parliament after women's suffrage, alongside Nelly Thüring (Social Democrat), Agda Östlund (Social Democrat) and Bertha Wellin (Conservative) in the Lower house (Andra kammaren), and Kerstin Hesselgren in the Upper house (Första kammaren).

[citation needed] Tamm was elected in 1953 to serve on the Executive Council of the Women's International Democratic Federation.