| Reuben Moon | |
| Birthname: | Reuben Osborne Moon |
| Image Upright: | .9 |
| Birth Name: | Reuben Osborne Moon |
| Birth Date: | 22 July 1847 |
| Birth Place: | Jobstown, New Jersey |
| Death Place: | Philadelphia, Pennsylvania |
| Occupation: | lawyer, educator |
| Restingplace: | West Laurel Hill Cemetery in Bala Cynwyd |
| Alma Mater: | National School of Oratory |
| Party: | Republican |
| Office: | Member of the U.S. House of Representatives |
| Constituency: | Pennsylvania's 4th district |
| Term Start: | November 3, 1903 |
| Term End: | March 3, 1913 |
| Predecessor: | Robert H. Foerderer |
| Successor: | George W. Edmonds |
Reuben Osborne Moon (July 22, 1847 – October 26, 1919) was an American educator and lawyer who served five terms as a Republican member of the U.S. House of Representatives for Pennsylvania from 1903 1913.
Moon was born in Jobstown, New Jersey. He graduated from the National School of Oratory, in Philadelphia, Pennsylvania, in 1874. He became a professor in the National School of Oratory, and engaged in lecturing and studied law. He was admitted to the bar in 1884 and commenced practice in Philadelphia. He was one of the founders and president of the Columbia Club.
He was elected in 1903 as a Republican to the 58th Congress, by special election, to fill the vacancy caused by the death of United States Representative Robert H. Foerderer.[1] He served as Chairman, Committee on Revision of the Laws in the 59th through 61st Congresses. He was an unsuccessful candidate for renomination in 1912.
He died in Philadelphia on October 26, 1919.[2] He is interred at West Laurel Hill Cemetery in Bala Cynwyd, PA.