Maltese is a Semitic language derived from late medieval Sicilian Arabic with Romance superstrata spoken by the Maltese people. It is the national language of Malta and the only official Semitic and Afroasiatic language of the European Union. Maltese is a Latinised variety of spoken historical Arabic through its descent from Siculo-Arabic, which developed as a Maghrebi Arabic dialect in the Emirate of Sicily between 831 and 1091. As a result of the Norman invasion of Malta and the subsequent re-Christianization of the islands, Maltese evolved independently of Classical Arabic in a gradual process of latinisation. It is therefore exceptional as a variety of historical Arabic that has no diglossic relationship with Classical or Modern Standard Arabic. Maltese is thus classified separately from the 30 varieties constituting the modern Arabic macrolanguage. Maltese is also distinguished from Arabic and other Semitic languages since its morphology has been deeply influenced by Romance languages, namely Italian and Sicilian.

The Semitic languages are a branch of the Afroasiatic language family. They include Arabic, Amharic, Aramaic, Hebrew, and numerous other ancient and modern languages. They are spoken by more than 330 million people across much of West Asia, North Africa, the Horn of Africa, Malta, and in large immigrant and expatriate communities in North America, Europe, and Australasia. The terminology was first used in the 1780s by members of the Göttingen school of history, who derived the name from Shem, one of the three sons of Noah in the Book of Genesis.