Ideciu de Jos is a commune located in Mureș County within the Transylvania region of Romania. The administrative area of the commune consists of three distinct villages: Deleni (also known as Oroszidecs), Ideciu de Jos, and Ideciu de Sus (also known as Felsőidecs).
The region is notable for its inclusion in the Via Transilvanica long-distance trail. This hiking route specifically passes through the villages of Ideciu de Sus and Deleni.