Mereb Lehe (Tigrinya: መረብ ለኸ) is a woreda in Tigray Region, Ethiopia.

Part of the Maekelay Zone, it is bordered on the south by La'ilay Maychew, on the southwest by Tahtay Maychew, on the west by the Semien Mi'irabawi (North Western) Zone, on the north by the Mareb River (which separates it from Eritrea), on the east by Enticho, and on the southeast by Adwa.

The majority of the inhabitants said they practiced Ethiopian Orthodox Christianity, with 96.93% reporting that as their religion, while 2.97% of the population were Muslim.

[2] A sample enumeration performed by the CSA in 2001 interviewed 18,660 farmers in this woreda, who held an average of 0.85 hectares of land.

Of the 15,776 hectares of private land surveyed, 85.92% was in cultivation, 1.19% pasture, 10.02% fallow, 0.08% woodland, and 2.78% was devoted to other uses.