Odeceixe is a village and civil parish in the northern part of the municipality of Aljezur, in the Portuguese Algarve, lying within the Nature Park of the Southwest Alentejo and Vincentine Coast.
The parish of Odeceixe is situated on the steeply inclined topography that divides the Algarve and Alentejo regions; the south bank of the Ribeira de Seixe which runs through this parish is the dividing line for this frontier.
The parish includes Praia do Odeceixe, 4 km west of the village of Odeceixe, at the mouth of the Ribeira de Seixe. This has one of the few official naturist beaches in Portugal. The parish is bordered in the north by São Teotónio, east by Marmelete and south by Rogil, while to the west is the Atlantic Ocean.