Mendo de Sousa (1120sâÂÂ1192) was a Portuguese Count, Patron of the Monastery of Pombeiro and Mordomo-mór of Sancho I of Portugal.
Born in Portugal, Mendo was the son of Gonçalo Mendes de Sousa and Urraca Sanches de Celanova, a noble woman, granddaughter of Henry, Count of Portugal and Theresa. He was a direct descendant of Sueiro Belfaguer, 1st Lord House of Sousa.
Mendo de Sousa married Maria Rodrigues Veloso, daughter of Count Rodrigo Velloso. They had six children:
Outside of marriage, Mendo had another son named Martim Mendes Conde.