Nun is the fourteenth letter of the Semitic abjads, including Phoenician Nūn Phoenician nun.svg, Hebrew Nun נ, Aramaic Nun Nun.svg, Syriac Nūn ܢܢ, and Arabic Nūn ن (in abjadi order). It is the third letter in Thaana (ނ), pronounced as "noonu".

Its sound value is [n].