Dinara Nature Park, Nature park in Split-Dalmatia and Šibenik-Knin Counties, Croatia

Dinara Nature Park is a conservation area spanning a karst landscape marked by sheer cliffs, mountain meadows, and the upper reaches of the Cetina River. The terrain varies from open highland plateaus to forested slopes, with numerous springs feeding the region's water systems.

Croatia's parliament passed the law proclaiming Dinara Nature Park on 5 February 2021, and it became official fifteen days later, making it the country's newest protected area and its second largest after Velebit at 63,052 hectares. A public presentation of the draft law had been held in Knin on 22 May 2020, attended by environment minister Tomislav Ćorić and the prefects of Šibenik-Knin and Split-Dalmatia counties.

The park's name comes from Dinara, the type locality that gave the whole Dinaric karst its name, a limestone formation with deposits over eight kilometres thick. Within the park, the Cetina's source and upper course, the Krka's spring, the Krčić stream and the Hrvatačko, Paško and Vrličko poljes tie settlements to water and pasture. The high grasslands, called rudine, are the main habitat of the endemic mountain meadow viper (Vipera ursinii macrops) in Croatia.

The park covers 63,052 hectares across Split-Dalmatia and Šibenik-Knin counties, and its highest point is Sinjal, at 1,831 metres. Access is from the Knin side, where the 2020 public consultation on the park law was held. The Cetina rises inside the park and flows through the Hrvatačko, Paško and Vrličko polja, so plan routes around these karst fields.

The park shelters more than a thousand plant species, including seventy-five species found nowhere else, alongside the rare Dinaric vole that makes these mountains its home. This biological richness results from the mountain's elevation and isolation, creating distinct ecological zones.