Senegalese Democratic Bloc (in French: Bloc Démocratique Sénégalais) was a political party in Senegal, founded on 27 October 1948 by Léopold Sédar Senghor, following a split from the French Section of the Workers' International (SFIO). One month after the split from SFIO, Senghor associated himself with the Indépendants d'Outre-Mer parliamentary fraction.
The BDS united the uniting the Union Générale des Originaires du Fleuve, the Mouvement des Forces Démocratiques de Casamance, and the Association des Toucouleurs du Fouta Toro.
In the 1951 legislative elections BDS got 213 182 votes (67% of the votes cast in Senegal). Two BDS members are elected MPs, Senghor and Abbas Gueye (a local CGT leader). The electoral campaign was marred by violence between BDS and SFIO.