Fernando Márquez de la Plata y Orozco (30 August 1740 – 17 December 1818) was a Spanish colonial functionary, and a member of the First Government Junta of Chile.

He began his studies at the Colegio de Santo Tomás and then obtained his degree in Canon Law at the University of Seville, graduating as a lawyer.

After Mateo de Toro y Zambrano took over as Royal Governor in 1810, he was convinced to call an open meeting of the leading citizens of the city to decide the political future of the colony.

The discussion ended with the conformation of the First Government Junta of Chile where Márquez de la Plata was elected as one of the members.

He finally returned to Chile in 1818, after independence, and was named Regent of the Justice Courts, a position he held until his death later in the same year, at the age of 78.