William Wallace Campbell (June 10, 1806 – September 7, 1881) was an American author, historian, lawyer and politician from New York.

He attended the common schools, and graduated from Union College in 1827.

He studied law, was admitted to the bar in 1831, and commenced practice in New York City.

He was a Republican member of the New York State Assembly (Otsego Co., 1st D.) in 1869.

New York State Surveyor General William Campbell was his uncle.