Teodoro Plata (1866 – February 6, 1897) was a Filipino patriot, and a co-founder of the Katipunan, the secret society which sparked the Philippine Revolution against Spanish rule in 1896.
On July 6, 1892, upon learning of Rizal's exile to Dapitan island in Mindanao, Plata, Bonifacio and Diwa decided to form a secret society to prepare for a revolution against Spain.
The following day, they met with their friends and fellow freemasons Deodato Arellano, Valentin Díaz and José Dizon at a house in Tondo and established the Katipunan.
In August 1896, immediately before the discovery of the Katipunan, Plata was elected secretary of war in the last Supreme Council that was constituted by Bonifacio like a government cabinet.
When the Spanish started arresting Katipunan members of August 19, 1896, Bonifacio called for a general assembly at Pugadlawin, a place in Balintawak (which was then under the town of Caloocan).