Jaÿda bint al-Ashÿath () (Full name: Jaÿda bint al-Ashÿath ibn Qays al-Kindë) was the wife of Hasan ibn Ali.
Shia Muslim historians wrote that Ja'da was promised gold and marriage to Yazid I. Seduced by the promise of wealth and power, she poisoned her husband, and then hastened to the court of Mu'awiya in Damascus to receive her reward. Later MuâÂÂawya reneged on his promise to marry her to his son and married her to another man.