Idanha-a-Velha (Idanha "the old") is a village in the civil parish (freguesia) of Monsanto e Idanha-a-Velha, in the municipality of Idanha-a-Nova (Idanha "the new"), central eastern Portugal, and the site of ancient Egitânia, a former bishopric. It covers an area of 20.98 km² and had a population of 79 as of 2001.

It stands in a place where a Roman city