Haḍḍa (Pashto: هډه) is a Greco-Buddhist archeological site located in the ancient region of Gandhara, near the Khyber Pass, ten kilometers south of the city of Jalalabad in today's eastern Afghanistan.
Some 23,000 Greco-Buddhist sculptures, both clay and plaster, were excavated in Haḍḍa during the 1930s and the 1970s. The findings combine elements of Buddhism and Hellenism in an almost perfect Hellenistic style.
Although the style of the artifacts is typical of the late Hellenistic 2nd or 1st century BCE, the Haḍḍa sculptures are usually dated (although with some uncertainty), to the 1st century CE or later (i.e. one or two centuries afterward). This discrepancy might be explained by a preservation of late Hellenistic styles for a few centuries in this part of the world. However it is possible that the artifacts actually were produced in the late Hellenistic period.
Given the antiquity of these sculptures and a technical refinement indicative of artists fully conversant with all the aspects of Greek sculpture, it has been suggested that Greek communities were directly involved in these realizations, and that "the area might be the cradle of incipient Buddhist sculpture in Indo-Greek style".
The style of many of the works at Haḍḍa is highly Hellenistic, and can be compared to sculptures found at the Temple of Apollo in Bassae, Greece.
The toponym Haḍḍa has its origins in Sanskrit haḍḍa n. m., "a bone", or, an unrecorded *haḍḍaka, adj., "(place) of bones". The former - if not a fossilized form - would have given rise to a Haḍḍ in the subsequent vernaculars of northern India (and in the Old Indic loans in modern Pashto). The latter would have given rise to the form Haḍḍa naturally and would well reflect the belief that Haḍḍa housed a bone-relic of Buddha. The term haḍḍa is found as a loan in Pashto haḍḍ, n., id. and may reflect the linguistic influence of the original pre-Islamic population of the area.