This paper examines the effect of the trends in coastal shipping in Greece on the ship - port interface and the resulting influence on port development. Taking advantage of the data provided in two databases concerning coastal shipping fleet and port infrastructure in Greece, an assessment of the existing situation both for fleet and ports is performed. Trends in fleet technology development affecting port infrastructure are analyzed. The effects of the current and anticipated advances on the port environment are determined and assessed. Finally, conclusions are drawn and policy recommendations are presented regarding port development needs arising from the occurring and expected changes in the Greek coastal shipping system and particularly those concerning the coastal shipping fleet.