Sempa Province was a region of the planet Bajor.
In ancient times, a battle between the Lerrit Army and the Perikian Free Army was fought in Sempa Province. General Takmor led the Perikian forces until her death; General Torrna Antosso was returning to Perikia from Fort Tendro and rallied the troops to victory, but considered the victory to be Takmor's. (DS9 short story: "Horn and Ivory")