Théodore Joseph Albéric Marie "Théo" Lefèvre (French pronunciation: [teɔdɔʁ ʒozɛf albeʁik maʁi teo ləfɛvʁ]; 17 January 1914 – 18 September 1973) was a lawyer at the Ghent court of justice.

Théo Lefèvre was elected to the Chamber of Representatives in 1946 and served until 1971, when he became a member of the Belgian Senate (1971–1973).

During this period, the Belgian army intervened in Congo (Operation Dragon Rouge).

In 1972 (Eyskens VI) he became state secretary for scientific policy (Jan. 1972 - Jan 1973).

[1] On 26 August 1944, Theo Lefèvre married Marie-José Billiaert (1918–1998).