William Travers Jerome (April 18, 1859 – February 13, 1934) was an American lawyer and politician from New York.

He was New York County District Attorney from 1902 to 1909, elected in 1901 on the Fusion ticket headed by Seth Low.

he led a campaign against political corruption and crime, often leading raids personally, notably the one against the gambling house of Richard Canfield.

In September 1910, Jerome defended successfully former State Engineer Frederick Skene against charges of grand larceny in office.

On May 9, 1888, he married Lavinia Taylor Howe, of Elizabeth, New Jersey, and their son was William Travers Jerome, Jr.[1] He died of pneumonia on February 13, 1934, at his townhouse 125 East 36th Street in Manhattan.