Qaid ibn Hammad ibn Buluggin (Arabic: قائد بن حماد بن بلكين), (Qayid bin Hammad bin bolowjin) was the second Hammadid ruler in what is now Algeria.
He succeeded his father Hammad ibn Buluggin in 1028.
[1] Four years later, he signed a treaty of peace with the Zirid Al-Mu'izz ibn Badis, who had moved against him from Kairouan.
In 1048, when al-Muizz declared himself subject of the Abbasid caliph of Baghdad, Qaid confirmed his allegiance to the Fatimid caliphs of Egypt, obtaining by caliph Ma'ad al-Mustansir Billah the title of Sharaf al-Dawla.
He died in 1054, and was succeeded by his son Muhsin ibn Qaid.