| Roberto Ribas Lange State Park | |
| Alt Name: | Parque Estadual Roberto Ribas Lange |
| Iucn Category: | II |
| Map: | Brazil |
| Relief: | yes |
| Nearest City: | Antonina, Paraná |
| Coordinates: | -25.3298°N -48.8675°W |
| Designation: | State park |
| Created: | 21 November 1994 |
| Administrator: | Instituto Ambiental do Paraná |
The Roberto Ribas Lange State Park (Portuguese: Parque Estadual Roberto Ribas Lange) is a State park in the state of Paraná, Brazil.It protects an area holding remnants of Atlantic Forest.
The Roberto Ribas Lange State Park is divided between the municipalities of Antonina (28.77%), Campina Grande do Sul (9.75%) and Morretes (61.48%) in Paraná.It has an area of .As of 2016 the park was not open to visitors.It adjoins the Pico Paraná State Park to the south.The conservation unit is part of the Lagamar Mosaic.
The Agudo da Cotia State Park was created by decree 7.301 of 24 September 1990.The Roberto Ribas Lange State Park was created by state decree 4.267 of 21 November 1994, with an area of .Of this, belonged to the Agudos da Cotia State Park, which was revoked.The objective is to protect remnants of Atlantic Forest, and their biodiversity.Administrative responsibility was given to the Environmental Institute of Paraná (IAP).