Regina Paz "Gina" La'o Lopez was a Filipino environmentalist and philanthropist who served as Secretary of the Philippines' Department of Environment and Natural Resources (DENR) in an ad interim basis under the Duterte administration. She was previously the Chairperson of the Pasig River Rehabilitation Commission under two consecutive administrations. Lopez was also a yoga missionary and a pioneer for corporate social responsibility.

The secretary of environment and natural resources is the head of the Department of Environment and Natural Resources of the Philippines.