Kadir was an arms dealer and information broker in the employ of the Byzantine arm of the Templar Order, during the early 16th century. He was also a sympathizer of the Qizilbash, an anti-Ottoman group, while remaining within the Ottoman Empire's artillery corps.
- Kadir is an Arabic name meaning "competent, powerful, strong." It can alternatively be transliterated as Qadir.
- Al-Qadir is one of the 99 attributes of Allah.