Catherine Schleimer-Kill, née Kill (1884–1973), was a Luxembourgish suffragist and women's rights activist.

She was early on engaged in the Catholic party: when women's suffrage was introduced in 1919, she was the only female candidate of the party.

In 1924, she founded the women's rights organization Action féminine, which became a part of the International Council of Women in 1926 and from 1927 also issued its own paper with the same name, the first in Luxembourg.

The organization became successful, with local branches all over Luxembourg.

In the municipal election of 1928, Action féminine presented a list of all female candidates, and Schleimer-Kill was elected to the municipal council of Esch-sur-Alzette for the party, serving there until 1934.