Moroccan Arabic (Arabic: اللهجة المغربية‎, Moroccan Arabic: الدارجة المغربية‎), known as Darija in Morocco, is a form of vernacular Arabic spoken in Morocco. It is part of the Maghrebi Arabic dialect continuum and as such is mutually intelligible to some extent with Algerian Arabic and to a lesser extent with Tunisian Arabic. It is spoken as a first language by about 50% to 75% of Morocco's population. Most other Moroccans natively speak one of the Tamazight languages. Educated Moroccan Tamazight speakers can communicate in mainstream Moroccan Arabic.

Moroccan Arabic has been heavily influenced mainly by the Berber languages and to a lesser extent by Latin (African Romance), Punic, French, and Spanish. The differences between it and Middle Eastern colloquial Arabic dialects are significant enough that some linguists classify Moroccan Arabic, along with other North African dialects, as a different language. It has asymmetric intelligibility with Middle Eastern colloquial dialects in that although Moroccans can proficiently understand Middle Eastern colloquial Arabic dialects, Middle Eastern Arabic speakers have significant difficulty understanding Moroccan Arabic.

While Modern Standard Arabic is used to varying degrees in formal situations such as religious sermons, books, newspapers, government communications, news broadcasts and political talkshows, is rarely spoken in daily life. Moroccan Arabic is the predominant spoken language of the country and has a strong presence in Moroccan television entertainment, cinema and commercial advertising. Moroccan Arabic has many regional dialects and accents as well. Its mainstream dialect is the one used in Casablanca, Rabat and Fez, and therefore it dominates the media, eclipsing the other regional dialects like those spoken in Tangiers and Oujda.

Sahrawi Hassaniya Arabic, spoken in the Moroccan Sahara, is usually considered a separate spoken Arabic variety with some Amazigh (Berber) vocabulary.