Umm Umais (Arabic: أم أبيس), Umm Ubais or Umm Ubays was among the slaves freed by Abu Bakr.
Umm Ubays was the daughter of Al-Nahdiah.
Umm Ubays had also a sister, Harithah bint al-Muammil, however it is not established if they shared the same mother in the sources this article uses.