Opountioi (Greek: Οπούντιοι) is a former municipality in Phthiotis, Greece with an area 129.534 km2[2] and a population of 2,923 inhabitants (2021 census).

[1] It was established in 1997 from the former communities Larymna and Martino.

[3] The name refers to the ancient Greek city Opus and its inhabitans (Opountean Locrians).

[4] The seat of the municipality was Martino (pop.

This Central Greece location article is a stub.