Fenâyî Cennet Mehmed Efendi (d. 1075/1664) was a seventeenth-century mystic poet of Jelveti disposition who used the pen name "Fenâyî" in his verse. Attached to the tradition of Aziz Mahmud Hüdâyî, he completed his Sufi formation and became known for his hymns and mystical utterances. His grave lies within the tomb-and-cemetery complex of the Hüdâyî lodge in Üsküdar. Although his name is sometimes confused with the contemporary Jelveti sheikh Fenâî Ali Efendi, the two are distinct figures.