| Honorific-Prefix: | Hon. |
| Orren Cheney Moore | |
| State: | New Hampshire |
| District: | 2nd |
| Term Start: | March 4, 1889 |
| Term End: | March 3, 1891 |
| Term Start2: | 1879 |
| Term End2: | 1881 |
| Office3: | Member of the New Hampshire House of Representatives |
| Term Start3: | 1878 |
| Term End3: | 1878 |
| Office4: | Member of the New Hampshire House of Representatives |
| Term Start4: | 1875 |
| Term End4: | 1876 |
| Office5: | Member of the New Hampshire House of Representatives |
| Term Start5: | 1863 |
| Term End5: | 1864 |
| Birth Date: | August 10, 1839 |
| Birth Place: | New Hampton, New Hampshire, US |
| Death Date: | May 12, 1893 (aged 53) |
| Death Place: | Nashua, New Hampshire, US |
Orren Cheney Moore (August 10, 1839 – May 12, 1893) was a U.S. Representative from New Hampshire.
Born in New Hampton, New Hampshire, Moore attended the public schools, learned the trade of printer and became a journalist. He served as member of the New Hampshire House of Representatives in 1863, 1864, 1875, 1876, and 1878. He established the Nashua Daily Telegraph in 1869. He served as member of the State tax commission in 1878 and served in the New Hampshire Senate, 1879-1881. He was again a member of the State house of representatives in 1887, and he served as chairman of the state railroad commission, 1884-1888.
Moore was elected as a Republican to the Fifty-first Congress (March 4, 1889 – March 3, 1891). He was an unsuccessful candidate for reelection in 1890 to the Fifty-second Congress. He resumed his former pursuits as editor and publisher, and died in Nashua, on May 12, 1893. He was interred in the Woodlawn Cemetery.