La Paya Natural National Park, National park in Puerto Leguízamo, Colombia.

La Paya Natural National Park is a 422,000-hectare protected area in Puerto Leguízamo, Putumayo, Colombia. It is a forested plain at 200 m above sea level, bordered by the Mecaya and Sencilla rivers to the north and the Putumayo to the south. The park protects La Paya lagoon, a 3,200-hectare wetland, along with other lagoons such as El Guadual, La Garza, Bibiano, Garopa and Amarón.

La Paya was declared a national natural park in 1984, protecting 422,000 hectares around the 3,200-hectare La Paya lagoon. Within the protected area live Murui (Huitoto family) communities in the Lagarto Cocha, Tukunaré, Jirjirí and Aguas Negras resguardos, Inganos at Cecilia Cocha and La Paya, and Inga and Kofán groups forming the El Hacha community, together occupying about 7% of the park. Some 30 peasant veredas also remain in the area, where inhabitants continue traditional extractive activities.

About 7% of the park is occupied by indigenous communities: the Murui (Huitoto linguistic family) in the Lagarto Cocha, Tukunaré, Jirjirí and Aguas Negras resguardos, the Inganos at Cecilia Cocha and La Paya, and Inga and Kofán families together in the community of El Hacha. Some 30 peasant veredas also remain in the area, where inhabitants continue traditional extractive activities.

Access from Bogotá is by air with stops in Neiva, Puerto Asís and Puerto Leguízamo, or overland to Neiva and Puerto Asís (20 hours) and then by river to Puerto Leguízamo (8 hours). Research and conservation are the priority activities; the park has a warm climate averaging 26 °C with 2,600 mm of annual rainfall.

The park's name comes from the La Paya lagoon, a 3,200-hectare wetland. The reserve also holds the El Guadual, La Garza, Bibiano, Garopa and Amarón lagoons, all draining into the Guayacá river. Its varzea forest is a flooded woodland type no longer found elsewhere in Putumayo.