William Rossell (October 25, 1760 – June 20, 1840) was a United States federal judge.
Born in Mount Holly Township, New Jersey, Rossell was a Sergeant in the Continental Army during the American Revolutionary War, and thereafter was a farmer in Mount Holly, New Jersey. He was a Justice of the Peace in Burlington County, New Jersey from 1795 to 1796, and a judge of common pleas beginning in 1796. In 1801, he returned to farmer and working as a millwright in Monmouth County, New Jersey. He was a Justice of the New Jersey Supreme Court from 1804 to 1826.
On November 10, 1826, Rossell received a recess appointment from President John Quincy Adams to a seat on the United States District Court for the District of New Jersey vacated by William Pennington. Formally nominated on December 13, 1826, Rossell was confirmed by the United States Senate on December 19, 1826, and received his commission the same day. He served thereafter until his death, in Mount Holly Township, New Jersey.
- William Rossell at the Biographical Directory of Federal Judges, a public domain publication of the Federal Judicial Center.