Standard Arabic (اللغة العربية الفصحى al-luġatu l-ʿarabīyatu l-fuṣḥā "the most eloquent Arabic language") or Literary Arabic is the standard and literary variety of Arabic used in writing and in formal speech. It is part of the Arabic macrolanguage.

Most western scholars distinguish two common (al-)fuṣ-ḥā (الفصحى) varieties: the Classical Arabic (CA) (اللغة العربية التراثية) of the Qur'an and early Islamic (7th to 9th centuries) literature, and Modern Standard Arabic (MSA) (اللغة العربية المعيارية الحديثة), the standard language in use today. The modern Standard language is based on the Classical language. Most Arabs consider the two varieties to be two registers of one language, although both registers can be described in Arabic as فصحى العصر fuṣḥā al-ʻaṣr (MSA) and فصحى التراث fuṣḥā at-turāth (CA).