Charles Nichols Spencer (1837 – March 6, 1893) was the Minister of Finance for the Kingdom of Hawaiʻi. He was one of Kalākaua's Cabinet Ministers at the time of the king's January 20, 1891 death, and the longest hold-over into Liliʻuokalani's Cabinet Ministers, serving June 17, 1890 – Sept 12, 1892.