| Sherrill Halbert | |
| Office: | Senior Judge of the United States District Court for the Eastern District of California |
| Term Start: | September 30, 1969 |
| Term End: | May 31, 1991 |
| Office1: | Judge of the United States District Court for the Eastern District of California |
| Term Start1: | September 18, 1966 |
| Term End1: | September 30, 1969 |
| Appointer1: | operation of law |
| Predecessor1: | Seat established by 80 Stat. 75 |
| Successor1: | Philip Charles Wilkins |
| Office2: | Judge of the United States District Court for the Northern District of California |
| Term Start2: | August 26, 1954 |
| Term End2: | September 18, 1966 |
| Appointer2: | Dwight D. Eisenhower |
| Predecessor2: | Dal Millington Lemmon |
| Successor2: | Seat abolished |
| Birth Name: | Sherrill Halbert |
| Birth Date: | 17 October 1901 |
| Birth Place: | Terra Bella, California |
| Death Place: | San Rafael, California |
| Education: | |
Ernest Sherrill Halbert (October 17, 1901 – May 31, 1991) was a United States district judge of the United States District Court for the Northern District of California and the United States District Court for the Eastern District of California.
Born in Terra Bella, California, Halbert received an Artium Baccalaureus degree from the University of California, Berkeley in 1924 and a Juris Doctor from the UC Berkeley School of Law in 1927. He was in private practice in Porterville, California from 1927 to 1941, also serving as chief deputy district attorney of Tulare County, California from 1927 to 1936. He was a deputy state attorney general of California in 1942, returning to private practice in San Francisco, California from 1942 to 1944, and in Modesto, California from 1944 to 1949. He was a chief deputy district attorney of Stanislaus County, California from 1944 to 1949, and district attorney of that county in 1949, until he became a Judge of the Superior Court of California, from 1949 to 1954.
On August 19, 1954, Halbert was nominated by President Dwight D. Eisenhower to a seat on the United States District Court for the Northern District of California vacated by Judge Dal Millington Lemmon. Halbert was confirmed by the United States Senate on August 20, 1954, and received his commission on August 26, 1954. On September 18, 1966, he was reassigned by operation of law to the United States District Court for the Eastern District of California, to a new seat authorized by 80 Stat. 75. He assumed senior status on September 30, 1969, serving in that capacity until his death on May 31, 1991, in San Rafael, California.