Jacob W. Hoysradt (March 8, 1824 Ancram, Columbia County, New York – November 15, 1890 Hudson, Columbia Co., NY) was an American manufacturer, banker and politician from New York.
He attended the public schools, and then began to work as a clerk in a store in Albany, and later in Kinderhook.
In 1845, he was employed by C. C. Alger's iron works in Berkshire, Massachusetts.
In 1850, Alger and Hoysradt opened the Hudson Iron Works in Hudson, New York, and Hoysradt worked there in different capacities, becoming General Manager in 1864, and President in 1868.
He died on November 15, 1890, at his home in Hudson, of Bright's disease.