Şehzade Mahmud Necmeddin
| Şehzade Mahmud Necmeddin | |
|---|---|
| Born | 23 June 1878 Dolmabahçe Palace, Constantinople, Ottoman Empire (present day Istanbul, Turkey) |
| Died | 27 June 1913 (aged 35) Kuruçeşme Palace, Kuruçeşme, Ottoman Empire (present day Istanbul, Turkey) |
| Burial | Mehmed V Mausoleum, Eyüp, Istanbul |
| Dynasty | Ottoman |
| Father | Mehmed V |
| Mother | Dürriaden Kadın |
| Religion | Sunni Islam |
Şehzade Mahmud Necmeddin Efendi (Ottoman Turkish: شہزادہ محمود نجم الدین; 23 June 1878 – 27 June 1913) was an Ottoman prince, second son of Sultan Mehmed V and his second consort Dürriaden Kadın.