Lawrence Francis Stengel (born 1952) is a United States federal judge.
Born in Lancaster, Pennsylvania, Stengel received a B.A. from Saint Joseph's University in 1974 and a J.D. from the University of Pittsburgh School of Law in 1980. He was a teacher at Lancaster Catholic High School from 1974 to 1977. He was in private practice in Pittsburgh from 1980 to 1984, and in Lancaster from 1985 to 1990. He was a judge on the Lancaster County Court of Common Pleas from 1990 to 2004. He also taught as an adjunct professor at Franklin & Marshall College from 1997 to 2004, and at Millersville University from 2000 to 2004.
On November 6, 2003, Stengel was nominated by President George W. Bush to a seat on the United States District Court for the Eastern District of Pennsylvania vacated by Ronald Buckwalter. Stengel was confirmed by the United States Senate on June 16, 2004, and received his commission on June 21, 2004.