| Sponheim | |
|---|---|
 | |
| Country | Rhenish Franconia |
| Founded | c. 1044 |
| Founder | Siegfried I, Count of Sponheim |
| Final ruler | Joseph Carl, Reichsgraf von Ortenburg |
| Titles | Counts (Grafen, Reichsgrafen) of Sponheim Margraves of the Hungarian March and of Istria Dukes of Carinthia and Margraves of Verona, lords of Carniola and the Slovene March |
| Dissolution | 1806 |
| Cadet branches | Ortenburg-Neuortenburg, Bolanden-Dannenfels, Heinsberg, Neef, Sayn-Wittgenstein, arguably Vianden |
The House of Sponheim or Spanheim was a medieval German noble family, which originated in Rhenish Franconia. They were immediate Counts of Sponheim until 1437 and Dukes of Carinthia from 1122 until 1269. Its cadet branches ruled in the Imperial County of Ortenburg-Neuortenburg and various Sayn-Wittgenstein states until 1806.