Cia Ordelaffi | |
|---|---|
| Coat of arms |  |
| Born | 21 June 1317 Forlì |
| Died | 1381 Forlì |
| Noble family | Ubaldini family |
| Spouse(s) | Francesco II Ordelaffi |
| Issue | |
| Occupation | Condottiero, military officer, memoirist |
Cia Ordelaffi also known as Marzia Ubaldini (1317–1381) was a noblewoman and political figure in 14th-century Italy. She was born into the Ubaldini family and married into the Ordelaffi family, becoming a significant figure in the politics of the Romagna region during the tumultuous period of Guelph and Ghibelline conflicts.