Katakolo (Greek: Κατάκολο) is a seaside town in the municipality of Pyrgos in western Elis, Greece. It is situated on a headland overlooking the Ionian Sea and separating the Gulf of Kyparissia from the rest of the Ionian. It is 11 km west of Pyrgos. The small village of Agios Andreas, which in ancient times was the natural harbour for Ancient Olympia, lies northwest of Katakolo. A railway connects Katakolo with Pyrgos and Olympia.