Islamic Calligraphy

Islamic calligraphy is the artistic practice of handwriting and calligraphy, in the languages which use Arabic alphabet, or the alphabets derived from it. It includes Arabic, Persian, Ottoman, and Urdu calligraphy. It is known in Arabic as khatt Arabi (خط عربي), which translates into Arabic line, design, or construction.

https://en.wikipedia.org/wiki/Islamic_calligraphy