| John Rolly Ross | |
| Office: | Chief Judge of the United States District Court for the District of Nevada |
| Term Start: | 1961 |
| Term End: | 1963 |
| Predecessor: | Roger Thomas Foley |
| Successor: | Roger D. Foley |
| Office1: | Judge of the United States District Court for the District of Nevada |
| Term Start1: | May 15, 1954 |
| Term End1: | April 22, 1963 |
| Appointer1: | Dwight D. Eisenhower |
| Predecessor1: | Seat established by 68 Stat. 8 |
| Successor1: | Bruce Rutherford Thompson |
| Birth Name: | John Rolly Ross |
| Birth Date: | 1 March 1899 |
| Birth Place: | Boston, Massachusetts |
| Party: | Republican |
| Education: | Stanford Law School (J.D.) |
John Rolly Ross (March 1, 1899 – April 22, 1963) was a United States district judge of the United States District Court for the District of Nevada.
Born in Boston, Massachusetts, Ross graduated from Lyon County High School, Nevada.[1] He was in the United States Army in World War I and served in France.[1] Upon return, he received an Artium Baccalaureus degree from the University of Nevada, Reno in 1923 and a Juris Doctor from Stanford Law School in 1926. He was in private practice from 1926 to 1954. He was district attorney of Lyon County from 1927 to 1929 and a city attorney of Yerington, Nevada from 1929 to 1939. He was the Republican State Chairman in 1934, and was city attorney of Carson City, Nevada from 1947 to 1951. He was a member of the Governor's Legislative Counsel in 1947, 1951, and 1953.
On May 3, 1954, Ross was nominated by President Dwight D. Eisenhower to a new seat on the United States District Court for the District of Nevada created by 68 Stat. 8. He was confirmed by the United States Senate on May 13, 1954, and received his commission on May 15, 1954. He served as Chief Judge from 1961 until his death on April 22, 1963.