| Leslie Rogers Darr | |
| Office: | Senior Judge of the United States District Court for the Eastern District of Tennessee |
| Term Start: | March 15, 1961 |
| Term End: | May 29, 1967 |
| Office1: | Chief Judge of the United States District Court for the Eastern District of Tennessee |
| Term Start1: | 1949 |
| Term End1: | 1961 |
| Predecessor1: | George Caldwell Taylor |
| Successor1: | Robert Love Taylor |
| Office2: | Judge of the United States District Court for the Eastern District of Tennessee |
| Term Start2: | June 2, 1939 |
| Term End2: | March 15, 1961 |
| Appointer2: | Franklin D. Roosevelt |
| Predecessor2: | Seat established by 52 Stat. 584 |
| Successor2: | Frank Wiley Wilson |
| Office3: | Judge of the United States District Court for the Middle District of Tennessee |
| Term Start3: | June 2, 1939 |
| Term End3: | November 27, 1940 |
| Appointer3: | Franklin D. Roosevelt |
| Predecessor3: | Seat established by 52 Stat. 584 |
| Successor3: | Seat abolished |
| Birth Name: | Leslie Rogers Darr |
| Birth Date: | 8 November 1886 |
| Birth Place: | Jasper, Tennessee |
Leslie Rogers Darr (November 8, 1886 – May 29, 1967) was a United States district judge of the United States District Court for the Eastern District of Tennessee and the United States District Court for the Middle District of Tennessee.
Born in Jasper, Tennessee, Darr received a Bachelor of Laws from the Cumberland School of Law (then part of Cumberland University, now part of Samford University) in 1909. He was in private practice in Jasper from 1910 to 1926. He was a judge of the 18th Circuit Court of Tennessee from 1926 to 1939.
Darr was nominated by President Franklin D. Roosevelt on May 24, 1939, to the United States District Court for the Eastern District of Tennessee and the United States District Court for the Middle District of Tennessee, to a new joint seat authorized by 52 Stat. 584. He was confirmed by the United States Senate on May 31, 1939, and received his commission on June 2, 1939. He was reassigned by operation of law to serve only in the Eastern District on November 27, 1940. He served as Chief Judge from 1949 to 1961. He assumed senior status on March 15, 1961. His service terminated on May 29, 1967, due to his death.