| Native Name: | أم السعد بنت عصام الحميري |
| Native Name Lang: | ar |
| Pseudonym: | Sa'duna |
| Birth Place: | Cordova |
| Death Date: | 1243 |
Umm Assa'd bint Isam al-Himyari (Arabic: أم السعد بنت عصام الحميري, died 1243) was a Muslim Arabic poet.
Umm Assa'd, also known as Sa'duna (Arabic: سعدونة|link=no), was from Cordova. Her poem 'I will kiss' has been translated into English, and is included in a modern bilingual anthology of classical poetry by Arab women.[1]