William W. Armstrong (politician)

William W. Armstrong (September 16, 1833 – May 20, 1905) was an American printer, newspaper publisher, and Republican politician from New York. He served as a United States Senator from New York from 1877 to 1883.

Armstrong was born in Speedsville, Tompkins County, New York. He attended common schools and learned the printing trade. He later became the proprietor of the Elmira Advertiser newspaper, eventually serving as its editor.

Armstrong held various local and state political positions before his election to the Senate. He was a member of the New York State Assembly in 1858 and 1859, and served as mayor of Elmira, New York, from 1866 to 1868.

In 1877, Armstrong was elected to the U.S. Senate to fill the vacancy caused by the resignation of Roscoe Conkling. He served a single term and was not a candidate for re-election in 1883. While in the Senate, he served on committees related to post offices and post roads, railroads, and manufactures.

After leaving the Senate, Armstrong returned to Elmira and resumed his business interests. He remained involved in local affairs and was a prominent citizen of the community until his death in 1905. He is buried in Woodlawn Cemetery in Elmira, New York.