Serra do Lima, Mountain summit in Patu, Brazil.

Serra do Lima, also called Serra de Patu, is a ridge in the municipality of Patu, Rio Grande do Norte, about 8 km long, with elevations between 400 and 600 m; its summit reaches 682 m, 137 m above the surrounding terrain, and its base is 4 km wide. The terrain is flat to the southeast and hilly to the northwest, with Patu about 4 km to the north.

The sources record no documented historical events for Serra do Lima itself; its written record comes from geographic description. Swedish reference data give the summit as 682 m above sea level, 137 m above the surrounding terrain and 4.0 km wide at the base, with Patu, the nearest town, 4.0 km to the north. The mountain's known history is tied to the Santuário do Lima, the sanctuary on it that draws religious visitors and tourists each year.

The Serra do Lima, also called Serra de Patu, holds the Santuário do Lima, a sanctuary visited every year by pilgrims and tourists. The devotion centred on this site gives the mountain a role in local religious life beyond its use as a landmark.

Hiking this summit requires proper equipment and ideally a local guide familiar with the terrain and conditions. Early morning visits offer better visibility for exploring the mountain.

The summit reaches 682 metres above sea level, 137 metres above the surrounding terrain, and its base spans 4 km. The nearest larger settlement is Patu, about 4 km to the north, and the surrounding landscape is mainly savanna.