Lerna (Greek: Λέρνα) is a former municipality in Argolis, Peloponnese, Greece. Since the 2011 local government reform, it has been part of the municipality Argos-Mykines, of which it is a municipal unit. The municipal unit has an area of 84.285 km2. The seat of the municipality was Myloi.

Historical population

YearPopulation
19912,742
20013,042
20112,319
20212,747