Geoplana iporanga is a species of land planarian belonging to the subfamily Geoplaninae.

[1] It is found in areas of the Atlantic Forest within Intervales State Park in Brazil.

The white band is longitudinally halved by a black line which fades as it approaches the posterior end.

[2] Along with its coloration, it can be distinguished from other members of Geoplana by a 2 mm anterior extension of the penis bulb from the penis papilla, sperm ducts that join inside the penis papilla, and a muscular cylinder around the ejaculatory duct with a diameter that is ten times that of the duct.

[2] The specific epithet is derived from the municipality of Iporanga, which is within Intervales State Park, the species' type locality.