| Surname: | Shaikh Siddiqui (Khanzada) Raja & Taluqdar of Mahmudabad Awadh |
| Type: | Noble house |
| Country: | Kingdom of Oudh, British India, India |
| Estates: | Mahmudabad Estate |
| Titles: | Nawab, Raja, Khan Bahadur, Amirul Omara, Saeedul Mulk, Muzzafar Jung, Ghanzanfaru-daula, Sir |
| Founder: | Sheikh Nathu Was rewarded large estates in Fatehpur by King of Delhi |
| Final Ruler: | Mohammad Amir Ahmad Khan |
| Current Head: | Mohammad Amir Mohammad Khan |
Mahmudabad Estate or Mahmoodabad Estate, governed from Mahmudabad, was one of the largest feudal estates in the erstwhile Kingdom of Oudh.[1] The rulers are generally referred to as Raja of Mahmudabad or Raja of Mahmoodabad.
The Mahmudabad Estate was founded in 1677 by Raja Mahmud Khan.[2]