Henry Sterling Magoon (January 31, 1832 – March 3, 1889) was an American lawyer and Republican politician.

[1] Born in Monticello in the Wisconsin Territory, Magoon attended the Rock River Seminary, Mount Morris, Illinois, and was graduated from the Western Military College, Drennon, Kentucky, in 1853.

In 1857, he returned to Wisconsin where he was admitted to the bar and commenced a law practice at Darlington.

He was defeated seeking renomination at the Republican district convention in 1876.

He died while on a visit to his summer home in Darlington, Wisconsin, on March 3, 1889.