Qoph is the nineteenth letter of the Semitic abjads, including Phoenician qōp 𐤒, Hebrew qūp̄ ק, Aramaic qop 𐡒, Syriac qōp̄ ܩ, and Arabic qāf ق.

The Hebrew alphabet, known variously by scholars as the Ktav Ashuri, Jewish script, square script and block script, is traditionally an abjad script used in the writing of the Hebrew language and other Jewish languages, most notably Yiddish, Ladino, Judeo-Arabic, and Judeo-Persian. In modern Hebrew, vowels are increasingly introduced. It is also used informally in Israel to write Levantine Arabic, especially among Druze. It is an offshoot of the Imperial Aramaic alphabet, which flourished during the Achaemenid Empire and which itself derives from the Phoenician alphabet.