Estômbar is a town in the civil parish of Estômbar e Parchal, in the municipality of Lagoa, Portugal. The population in 2011 was 4,985, in an area of 24.21 km². It is situated just west of the city of Lagoa itself. Its civil status was raised to that of a town on August 16, 1991.
Estômbar is mainly as a bedroom community for Portimão, and many of its residents travel daily across the Rio Arade to work in the neighboring municipality.