John Wethered (May 8, 1809 – February 15, 1888) was a U.S. Representative from Maryland.

John Wethered was born on May 8, 1809, in Baltimore County, Maryland. He completed preparatory studies.^[1]

Wethered held several local offices, and engaged in the manufacture of woolen goods at Wetheredville,^[1] which was later renamed Dickeyville^[2] and incorporated into Baltimore City.

Wethered was elected as a Whig to the Twenty-eighth Congress (March 4, 1843 – March 3, 1845).^[1] He was nominated as the Whig candidate for the Thirty-third Congress, but lost to Jacob Shower.^[3] After his tenure in Congress, he resumed the manufacture of woolen goods. He also served as delegate from Baltimore County to the State convention which framed the Constitution of Maryland in 1867.^[1][4] He retired from active pursuits in 1868 and lived on his estate, "Ashland", near Catonsville, Maryland.^[1]

Wethered died at Ashland on February 15, 1888. He is interred in Greenmount Cemetery in Baltimore, Maryland.^[1]