Philippines's 6th senatorial district, officially the Sixth Senatorial District of the Philippine Islands, was one of the twelve senatorial districts of the Philippines in existence between 1916 and 1935. It elected two members to the Senate of the Philippines, the upper chamber of the bicameral Philippine Legislature under the Insular Government of the Philippine Islands for each of the 4th to 10th legislatures. The district was created under the 1916 Jones Law from the southern Luzon provinces of Albay, Ambos Camarines and Sorsogon. Ambos Camarines was split into the provinces of Camarines Norte and Camarines Sur in 1919, and Masbate was added in 1920 upon its re-establishment as a regular province separate from Sorsogon.