Haḍḍa is a Greco-Buddhist archeological site located ten kilometers south of the city of Jalalabad, in the Nangarhar Province of eastern Afghanistan.

The Kharoṣṭhī script, also known as the Gāndhārī script, was an ancient Indic script used by various peoples from the north-western outskirts of the Indian subcontinent to Central Asia via Afghanistan. An abugida, it was introduced at least by the middle of the 3rd century BCE, possibly during the 4th century BCE, and remained in use until it died out in its homeland around the 3rd century CE.