Katakolo 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.

The port of Katakolo is a popular stop for cruise ships, offering an opportunity for passengers to visit the site of Olympia. Low hills with forests surround Katakolo. Visitors here have the opportunity to visit the ancient port of Olympia, the sunken ancient city of Pheia. Ancient Pheia was on the other side of the mountain of Ichthys, now Agios Andreas, within walking distance of Katakolo port. The lighthouse of Katakolo was built in 1865. One of the most important sites of Katakolo is the Museum of Ancient Greek Technology. Katakolo has a big market. It consists of more than sixty shops. Cafeterias, restaurants, clothing, and traditional Greek products.
The remains of the medieval Pontikokastro/Belvedere/Beauvoir castle still stand on a hilltop northeast of the modern port, but the castle is mostly ruined and its original appearance can only be surmised. A railway station connects Katakolo with Pyrgos and Olympia