Mariano Trías, Filipino general and politician, 1st Vice President of the Philippines (died 1914)

Mariano Trías y Closas is considered to be the first de facto Philippine Vice President of that revolutionary government established at the Tejeros Convention - an assembly of Philippine revolutionary leaders that elected officials of the revolutionary movement against the colonial government of Spain. When that assembly broke into factions, a truce known as the Pact of Biak-na-Bato was signed by the group and also recognized the elected officials and Trias as the vice president of Emilio Aguinaldo, who is also considered to be the first President of the Philippines. With the promulgation of the Malolos Constitution by the Malolos Convention, the First Philippine Republic was born. Under the Aguinaldo administration, Trias served in the cabinet initially as Secretary of Finance and, later, as Secretary of War.

Vice President of the Philippines is title of the second-highest official in the executive branch of the Philippine government and is the first in the presidential line of succession. The vice president is directly elected by the citizens of the Philippines and is one of only two nationally elected executive officials, the other being the president.