The Freethinkers' Society of Ethical Culture (Lithuanian: Laisvamanių etinės kultūros draugija or LEKD) was a Lithuanian society promoting freethought active from 1923 to 1941. Chaired by Jonas Šliūpas, it promoted non-religious policies in public life (e.g. established non-religious cemeteries and lobbied for civil registration). It published magazine Laisvoji mintis (Free Thought; 1933–1941) and separate books (mainly translated from foreign authors). The society considerably expanded after other political parties were abolished in 1936. Its secular outlook attracted many communists and socialists. It continued to expand after the Soviet occupation of Lithuania in June 1940, but was abolished after the German occupation in June 1941.