Gerardo Valeriano Ortega DVM (August 28, 1963 – January 24, 2011), better known simply as "Doc Gerry" or "Ka Gerry," was a Filipino journalist, veterinarian, politician, environmental activist, and community organizer best known for his work to promote crocodile farming in the Philippines and for his advocacy against mining on the island of Palawan. Ortega has often been lauded as a hero of the Philippine Environment since his assassination on January 24, 2011, allegedly due to his anti-mining and anti-corruption advocacy.