Sociedad Nacional para el Progreso de la Mujer

Sociedad Nacional para el Progreso de la Mujer (National Society for the Progress of Women), was a women's organization in Panama, founded in 1923.

It played an important role in the campaign for women's suffrage in Panama, alongside the Grupo Feminista Renovación under the leadership of Esther Neira de Calvo. It worked for women's equal rights in law, economy and political suffrage.

The 1941 Constitution of Panama finally approved conditional suffrage for literate women; both men and women were allowed to vote by the Decree No. 12 of 2 February 1945, when the first women, Esther Neira de Calvo and Gumersinda Paez, was elected to parliament; the reform was finally fully implemented in the 1946 Constitution.