| Allen Burroughs Hannay | |
| Office: | Senior Judge of the United States District Court for the Southern District of Texas |
| Term Start: | August 6, 1975 |
| Term End: | October 22, 1983 |
| Office1: | Chief Judge of the United States District Court for the Southern District of Texas |
| Term Start1: | 1954 |
| Term End1: | 1962 |
| Predecessor1: | Office established |
| Successor1: | Ben Clarkson Connally |
| Office2: | Judge of the United States District Court for the Southern District of Texas |
| Term Start2: | August 12, 1942 |
| Term End2: | August 6, 1975 |
| Appointer2: | Franklin D. Roosevelt |
| Predecessor2: | James Burr V Allred |
| Successor2: | Ross N. Sterling |
| Birth Name: | Allen Burroughs Hannay |
| Birth Date: | 14 February 1892 |
| Birth Place: | Hempstead, Texas, U.S. |
| Death Place: | Houston, Texas, U.S. |
| Education: | University of Texas School of Law (LL.B.) |
Allen Burroughs Hannay (February 14, 1892 – October 22, 1983) was a United States district judge of the United States District Court for the Southern District of Texas.
Born in Hempstead, Texas, Hannay received a Bachelor of Laws from the University of Texas School of Law in 1913. He was in private practice in Hempstead and Houston, Texas from 1913 to 1930. He was a Judge in Waller County, Texas from 1915 to 1917. He was a state district judge in the 113th Judicial District of Texas from 1930 to 1942.
On July 16, 1942, Hannay was nominated by President Franklin D. Roosevelt to a seat on the United States District Court for the Southern District of Texas vacated by Judge James V. Allred. Hannay was confirmed by the United States Senate on August 6, 1942, and received his commission on August 12, 1942. He served as Chief Judge from 1954 to 1962. He assumed senior status on August 6, 1975, serving in that capacity until his death on October 22, 1983, in Houston.