This article examines the relationship between oral traditions of cursing and the oldest Greek curse tablets from Selinous and Himera in western Sicily. As much early Greek writing is thought to record or reflect the spoken word, it is perhaps unexpected that these early Sicilian texts carry few signs of orality or speech. There are no verbs of speaking, incanting, cursing, singing, binding; no deictic language; no metre. Rather, the oldest curse tablets in the Greek world show clear signs of written literacy. Sicilian curse tablets from 500–450 bce employ verbs of writing to curse their victims (ἐνγράφω, ‘I inscribe’; καταγράφω, ‘I write down’; ἀπογράφω, ‘I enrol’), and exhibit textual distortion, scribal symbols, abbreviations, and columnar lists of names – features that ground these texts in the realm of writing. It is suggested that Greek curse practice developed alongside and in response to the spread of legal writing in the late sixth-century law courts of western Sicily.