| Clarkson Sherman Fisher | |
| Office: | Senior Judge of the United States District Court for the District of New Jersey |
| Term Start: | October 1, 1987 |
| Term End: | July 27, 1997 |
| Office1: | Chief Judge of the United States District Court for the District of New Jersey |
| Term Start1: | 1979 |
| Term End1: | 1987 |
| Predecessor1: | George H. Barlow |
| Successor1: | John F. Gerry |
| Office2: | Judge of the United States District Court for the District of New Jersey |
| Term Start2: | October 16, 1970 |
| Term End2: | October 1, 1987 |
| Appointer2: | Richard Nixon |
| Predecessor2: | Reynier Jacob Wortendyke Jr. |
| Successor2: | John C. Lifland |
| Birth Name: | Clarkson Sherman Fisher |
| Birth Date: | 8 July 1921 |
| Birth Place: | Long Branch, New Jersey |
| Death Place: | Princeton, New Jersey |
Clarkson Sherman Fisher (July 8, 1921 – July 27, 1997) was a United States district judge of the United States District Court for the District of New Jersey.
Born in Long Branch, New Jersey, Fisher was a sergeant in the United States Army during World War II, from 1942 to 1945, and was a reserve sergeant from 1946 to 1949. He received a Bachelor of Laws from the Notre Dame Law School in 1950. He entered private practice in Long Branch from 1951 to 1964. He was a councilman in West Long Branch, New Jersey from 1959 to 1964, serving as a member of the New Jersey General Assembly in 1964. He was a judge of the Monmouth County Court in New Jersey from 1964 to 1966, and of the Superior Court of New Jersey from 1966 to 1970.
On October 7, 1970, Fisher was nominated by President Richard Nixon to a seat on the United States District Court for the District of New Jersey vacated by Judge Reynier Jacob Wortendyke Jr. Fisher was confirmed by the United States Senate on October 13, 1970, and received his commission on October 16, 1970. He served as Chief Judge from 1979 to 1987, assuming senior status on October 1, 1987. He served in that capacity until his death on July 27, 1997, in Princeton, New Jersey.
Fisher's son, Clarkson S. Fisher, Jr., also is a judge, having served on the Superior Court of New Jersey since 1993, and on that court's Appellate Division since 2003.
The Clarkson S. Fisher Federal Building and United States Courthouse in Trenton, New Jersey is named in his honor.