| Sebastian Streeter Marble | |
| Order1: | 41st |
| Office1: | Governor of Maine |
| Term Start1: | December 15, 1887 |
| Term End1: | January 2, 1889 |
| Predecessor1: | Joseph R. Bodwell |
| Successor1: | Edwin C. Burleigh |
| Office2: | Member of the Maine Senate |
| Term2: | 1882–1887 |
| Birth Date: | 1 March 1817 |
| Birth Place: | Dixfield, Massachusetts (now Maine) |
| Death Place: | Waldoboro, Maine |
| Party: | Republican |
| Alma Mater: | Waterville Academy |
| Profession: | Lawyer |
Sebastian Streeter Marble (March 1, 1817 – May 10, 1902) was an American politician and the 41st Governor of Maine.
Marble was born in Dixfield (in modern-day Maine, then a part of Massachusetts) on March 1, 1817, one of nine children of Ephraim Marble (1787 -1871) and his wife, the former Hannah Packard. He was educated at the Waterville Academy, studied law, and was admitted to the bar in 1843.
He practiced law in Waldoboro, Maine, and became active in the Republican Party. Marble served as federal deputy collector of customs for his district from 1862 to 1863, and collector from 1864 to 1867. Marble was Maine's federal registrar in bankruptcy (a judicial position) from 1867 to 1870, and served as the United States Marshal for Maine from 1870 to 1878.
Marble was a delegate to the Republican National Conventions in 1864 and 1880.
He was elected to three terms in the Maine State Senate beginning in 1882, and was President of the Senate in his last term. Governor Joseph R. Bodwell died on December 15, 1887, and as Senate President, Marble succeeded to the governorship. Marble was unsuccessful in his bid for election to a full term; he was 71 at the time and the Republican party decided to nominate a younger candidate. They settled on Edwin C. Burleigh, who was nominated and won the general election.
Marble left office at the end of his term on January 2, 1889. He remained active in his local community, including service on the school board and chairman of the Board of Selectmen. He died in Waldoboro on May 10, 1902, and was buried at the Rural Cemetery in Waldoboro.