|Judge of the United States District Court for the Western District of Pennsylvania|
|Assumed office |
September 19, 2018
|Appointed by||Donald Trump|
|Preceded by||Gary L. Lancaster|
|Judge of the Court of Common Pleas for Butler County|
June 1996 – September 19, 2018
|Appointed by||Tom Ridge|
|Born||1954 (age 67–68)|
Butler, Pennsylvania, U.S.
|Education||Pennsylvania State University (BA)|
University of Pittsburgh School of Law (JD)
Marilyn Jean Horan (born 1954) is a United States district judge of the United States District Court for the Western District of Pennsylvania.
Horan received a Bachelor of Arts, magna cum laude, from the Pennsylvania State University in 1976 and her Juris Doctor from the University of Pittsburgh School of Law in 1979. From 1979 to 1996, Horan worked at the Butler, Pennsylvania law firm of Murrin, Taylor, Flach and Horan, where she was elevated to partner, in 1982. From 1996 to 2018, Horan served as a judge of the Court of Common Pleas for Butler County in the civil division. During her tenure on the state bench, she also presided over civil and family law cases.
On July 30, 2015, President Obama nominated Horan to serve as a United States District Judge of the United States District Court for the Western District of Pennsylvania, to the seat vacated by Judge Terrence F. McVerry, who assumed senior status on September 30, 2013. She received a hearing before the Senate Judiciary Committee on December 9, 2015. On January 28, 2016, her nomination was reported out of committee by voice vote. Her nomination expired on January 3, 2017, with the end of the 114th Congress.
On December 20, 2017, her renomination by President Trump was announced and sent to the United States Senate. Horan was nominated to the seat vacated by Gary L. Lancaster, who died on April 24, 2013. On February 15, 2018, the Senate Judiciary Committee voted to report her nomination by voice vote. On September 6, 2018, her nomination was confirmed by voice vote. She received her judicial commission on September 19, 2018.