The term for an Archaic Greek standing male nude statue is kouros.
“Kouros” is a modern art-historical term derived from the ancient Greek word for “youth” or “boy.” Kouroi usually depict idealized, youthful males standing frontally, with their arms beside their bodies and one leg—typically the left—advanced. The type developed during Greece’s Archaic period, especially from the seventh through sixth centuries BCE.
Kouroi were not all portraits of the god Apollo, a common misconception. They could serve as funerary monuments, athletic memorials, or offerings in sanctuaries. Many were carved from marble, although examples also exist in bronze, limestone, wood, ivory, and terracotta. Their rigid pose and patterned anatomy show the influence of Egyptian sculpture, while later works gradually move toward more naturalistic Classical forms.
The female counterpart is kore, meaning a standing clothed female figure. A stele is a commemorative slab, while a herm is a pillar-like sculpture, often associated with Hermes; neither names this specific male statue type.