Mahmut Ustaosmanoğlu
| Mahmut Ustaosmanoğlu | |
|---|---|
| Born | 1929 | 
| Died | (aged 93) | 
| Occupations | 
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| Awards | 35. The 500 Most Influential Muslims | 
| Part of a series on Sunni Islam | 
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| Islam portal | 
| Part of a series on Islam Sufism | 
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| Islam portal | 
Mahmut Ustaosmanoğlu (1929 – 23 June 2022), also known as Mahmud Effendi and known to his followers as "Effendi Hazretleri", was a Turkish Sufi Sheikh and the leader of the influential İsmailağa Jamia of the Naqshbandi-Khalidiyya centered in Çarşamba, Istanbul.