Coptic, the liturgical language of Coptic Christians (an Egyptian ethnoreligious group), is a direct descendant of the Ancient Egyptian language.
The Coptic writing system was developed as a way to write the Egyptian language using (mostly) Greek letters, and is still around today, though outside of the church nearly all Copts now use and speak Arabic.
Source: Rogers' Writing Systems: A Linguistic Approach
Follow-up question: I know there are some fringe groups that worship Greco-Roman gods still, does anyone still worship the Egyptian gods?