Ernest Knaebel (June 14, 1872 – February 19, 1947) was an American lawyer and the eleventh reporter of decisions of the United States Supreme Court, serving from 1916 to 1944.

He practiced law in New York City in 1898 but soon moved to Denver, Colorado.

He practiced law there until 1902, when he was named United States Attorney, serving until 1907.

[3] While at the United States Department of Justice, he specialized in cases involving the public lands and Indian matters.

He died at his sister-in-law's home in West Boxford, Massachusetts on February 19, 1947.