Harafin larabci yana nufin saitunan haruffa da aka yi amfani da shi don rubuta harshen larabci. Ya ƙunshi haruffa 28, waɗanda aka rubuta daga dama zuwa hagu. Kowane harafi a haruffan Larabci yana da tsari na musamman da sauti, kuma ana iya rubuta wasu haruffa daban-daban dangane da matsayinsu a cikin kalma. An yi amfani da haruffan Larabci sosai a Gabas ta Tsakiya da Arewacin Afirka, har ma a wasu yankuna inda aka yi magana ko kuma ana amfani da larabci ko al'adun gargajiya.