William Bradford (September 14, 1755 – August 23, 1795) was a lawyer and judge from Philadelphia, Pennsylvania, and the second United States Attorney General in 1794–1795.

He was the son of the printer William Bradford and was born in Philadelphia. He began his education at the Academy of Philadelphia, then attended Princeton University, where he formed a lifelong friendship with Virginian James Madison, before graduating in 1772. When he returned to Philadelphia he read law with Edward Shippen. His progress was delayed by the American Revolutionary War.

In 1776, when the Pennsylvania militia was called out, William volunteered as a private. Later that year, the militia was organized into a "flying camp" with Daniel Roberdeau as the first brigadier general in the states forces. General Roberdeau chose the young man as an aide, and later promoted him to brigade major on his headquarters staff.

When his militia term expired, he joined the Continental Army as a captain and company commander in the 11th Pennsylvania Regiment commanded by Richard Hampton. By the end of the year, he saw action in the Battle of Trenton. While at Morristown, New Jersey, he was named a deputy to the muster master-general on April 10, 1777, and he was promoted to lieutenant colonel. During the encampment at Valley Forge in late 1777 and early 1778, his headquarters was at the David Havard House.^[1] He resigned after two years due to ill health and returned home in early 1779.

Bradford joined the bar before the Pennsylvania Supreme Court in September 1779. He was named as the state's Attorney General in 1780, and served until 1791. In 1784, he married Susan Vergereau Boudinot, the only daughter of Elias Boudinot. The following year, 1785, Bradford was elected a member of the American Philosophical Society.^[2] On August 2, 1791 Bradford represented General William West and argued the first recorded case before the U.S. Supreme Court, West v. Barnes losing the decision.

He died while in office as US Attorney General in 1795. He was buried with his wife's family in Saint Mary's Episcopal Churchyard in Burlington, New Jersey.^[4] A cenotaph for Bradford was built at his family's burial plot in Laurel Hill Cemetery in Philadelphia.

Bradford County, Pennsylvania, was named in his honor.^[5]