Mehmed Shevki Efendi (Ottoman Turkish: محمد شوقي افندي; Modern Turkish: Mehmed Şevki Efendi; 1829 Kastamonu–1887 Istanbul) was a prominent Ottoman calligrapher. He is known for his Thuluth-Naskh works, and his style developed into the Shevki Mektebi school, which many contemporary calligraphers in the style take as a reference.