Pallini is situated in the eastern part of the Athens conurbation, at about 150 m elevation. It lies in a plain between the mountains Penteliko and Hymettus. It is 2 km east of Gerakas and 14 km east of Athens city centre. Its built-up area is continuous with those of the neighbouring suburbs Gerakas and Anthousa. Pallini station, west of the town centre, is served by commuter trains and Athens metro. Greek National Road 54 (Athens - Rafina) passes through Pallini. The municipal unit Pallini includes the subdivision of Leontari.