Brigadier John Nicholson (11 December 1822 – 23 September 1857) was an Irish officer in the British Army who rose to prominence during his career in British India. Born in Ireland, Nicholson moved to the Indian subcontinent at a young age and obtained a commission in the East India Company where he spent the majority of his life helping to expand Company rule in numerous conflicts such as the First Anglo-Afghan War and the First and Second Anglo-Sikh War. Nicholson created a legend for himself as a political officer under Henry Lawrence in the frontier provinces of British India, especially in the Punjab, and he was instrumental in the establishment of the North-West Frontier. Nicholson's most defining moment in his military career was his crucial role in suppressing the Indian Rebellion of 1857, dying in the conflict.