Isabella of Jerusalem (1170-1205) was Queen of Jerusalem from 1192 to 1205. She was the daughter of Amalric I of Jerusalem and Maria Comnena, daughter of Byzantine emperor Manuel I Comnenus.
Isabella was married four times. Her husbands were:
- Humphrey IV of Toron. They married in 1183. The marriage was annulled so Isabella could marry her second husband.
- Conrad of Montferrat, who died in 1192 when he was stabbed to death by Assassins. They had one daughter, Maria of Montferrat (born c.1192).
- Henry II of Champagne, who she married in 1192. He died in 1197 when he fell out of a tower window. They had two daughters, Alice (born 1196) and Philippa of Champagne.
- Amalric II of Jerusalem (also Amalric I of Cyprus), brother of Guy of Lusignan. He died in 1205, shortly before his wife. They had two daughters, Sybilla and Melisende of Lusignan, and one son.