Zâkirzâde Abdullah Efendi (d. 1067/1657) was a Jelveti sheikh known by this epithet as the son of Osman Efendi, the chief chanter (zâkirbaşı) of Aziz Mahmud Hüdâyî. After serving as a deputy in Manisa he returned to Istanbul, holding the sheikhship of the Zeyrek and Kasım Çelebi lodges and preaching at the Kılıç Ali Paşa and Fatih mosques. Renowned mystics such as Atpazarî Osman Fazlı were among his disciples. He died in 1657 and was buried near the Miskinler lodge in the Karacaahmet Cemetery of Üsküdar.