Rodney William Sippel^[1] (born July 26, 1956) is a senior United States district judge of the United States District Court for the Eastern District of Missouri and of the United States District Court for the Western District of Missouri.

Sippel was born in Jefferson City, Missouri. He received a Bachelor of Science degree from University of Tulsa in 1978, and a Juris Doctor from Washington University School of Law in 1981. He lived in St. Louis, Missouri and practiced law there, except for a period when he was an administrative assistant to Representative Richard A. Gephardt from 1993 to 1995.

On May 15, 1997, Sippel was nominated by President Bill Clinton to serve as a United States district judge of the United States District Courts for both the Western and Eastern District of Missouri, to a seat vacated by Judge Stephen N. Limbaugh Sr. He was confirmed by the United States Senate on November 8, 1997, and received his commission on November 12, 1997. He assumed senior status on January 28, 2023.^[2] He served as chief judge of the United States District Court for the Eastern District of Missouri from January 4, 2016,^[3] to December 16, 2022.^[4] In spite of his joint appointment, Sippel maintains chambers and hears cases only in the Eastern District of Missouri.

• Rodney W. Sippel at the Biographical Directory of Federal Judges, a publication of the Federal Judicial Center.