John Campbell (British Army officer, died 1804)

John Campbell (d. 1804) was a British Army officer who served primarily in India. Details regarding his early life and specific regimental assignments are somewhat scarce, but he rose to the rank of Colonel.

Campbell is most notable for his long association with the service of the Nizam of Hyderabad. He commanded a contingent of the Nizam's troops, which were trained and disciplined in the European style. These troops, known as the Nizam's Regular Infantry, were a vital component of the Nizam's military strength.

His tenure with the Nizam appears to have been lengthy and he was highly regarded for his organizational skills and military acumen in developing and leading the Nizam's forces. He played a significant role in maintaining stability in the Hyderabad region during a period of considerable political upheaval in India.

Colonel Campbell died in 1804 while still in the service of the Nizam of Hyderabad. Further research is needed to ascertain the exact details of his contributions to the British East India Company and the Nizam's military, as well as details of his personal life.