Mustafa Halim Özyazıcı (14 January, 1898 - 30 September, 1964) was an Ottoman calligrapher and one of the last of the classical Ottoman calligraphers, using the Arabic script. He was a versatile calligrapher with a high level of expertise in many styles of script, but was widely regarded as a master celi-sulus. He is most noted for his work on various restoration projects, of both manuscripts and public buildings.