科普特语（Coptic language）是古埃及语言发展的最末阶段，形成于纪元前，纪元伊始，人们开始借鉴希腊文本，创造出科普特字母。公元3世纪，出现大量用科普特语誊抄的希腊文献，尤其是基督教经文。迦克墩公会议后，亚历山大学派反对确立耶稣「一位二性」的信经，与罗马天主教分道扬镳，出现了科普特教派。科普特语言文本在科普特教派的信徒的使用中得到继承发扬。科普特语曾在埃及各地广泛使用，但后来逐渐被阿拉伯语取代。现在，科普特语只在埃及科普特人的教堂中使用。

Coptic or Coptic Egyptian (Bohairic: ϯⲙⲉⲧⲣⲉⲙⲛ̀ⲭⲏⲙⲓ ti.met.rem.ən.khēmi, Sahidic: ⲧⲙⲛ̄ⲧⲣⲙ̄ⲛ̄ⲕⲏⲙⲉ t.mənt.rəm.ən.kēme, Greek: Μετ Ρεμνχημι Met Rem(e)nkhēmi) is the latest stage of the Egyptian language, a northern Afroasiatic language spoken in Egypt until, at least, the 17th century. Egyptian began to be written in the Coptic alphabet, an adaptation of the Greek script with some letters inherited from Demotic, in the 1st century AD. The new writing system became the Coptic script, an adapted Greek alphabet with the addition of six or seven signs from the demotic script to represent Egyptian sounds the Greek language did not have. Several distinct Coptic dialects are identified, the most prominent of which are Sahidic, originating in parts of Upper Egypt, and Bohairic, originally from the western Nile Delta in Lower Egypt.