Kyllini (Greek: Κυλλήνη) is a port town and a community in the municipal unit of Kastro-Kyllini, Elis, Greece. It is situated on the Ionian Sea coast, 11 km west of Andravida, 28 km northeast of Zakynthos and 39 km northwest of Pyrgos. From the port of Kyllini there are several ferry connections to the Ionian islands Zakynthos and Cephalonia. It was the terminus of the now dismantled Kavasila–Kyllini railway.
The ruins of the medieval town Glarentza are situated in Kyllini. The town was named after Cyllene (Ancient Greek: Κυλλήνη), a port town of ancient Elis.