The Lefts Bloc (, ) was a coalition of Republican political forces created during the French Third Republic in 1899 to contest the 1902 legislative elections. It initially supported Emile Combes's cabinet (June 1902-January 1905), then Maurice Rouvier's cabinet (January 1905-March 1906) and finally Maurice Rouvier's cabinet (March 1906-October 1906). The Republican Coalition dissolved itself after the International Socialist Congress of Amsterdam of 1904 and the subsequent withdrawal of Socialist ministers from the government. Although the Left won the 1906 legislative election, the Socialists did not repeat their alliances with the Radicals and the Radical-Socialists and other Republican forces.