The Moab sector was a region of space. The Moab system, containing a Human colony on Moab IV, was located in this sector.

As of 2368, no ships were ever reported missing in the sector.

In 2368 a stellar core fragment from a neutron star passed through this sector, threatening the colony on Moab IV. (TNG: "The Masterpiece Society")

The Star Trek Encyclopedia (4th ed., vol. 2, p. 49) described the Moab sector as a region of Federation space.
According to the script, the pronunciation for Moab was "MOH-ub". [1]