The Hellenic Civil Aviation Authority (Greek: Υπηρεσία Πολιτικής Αεροπορίας), abbreviated HCAA (Greek: ΥΠΑ), is a department of the Greek government under the Ministry of Infrastructure, Transport and Networks.

[1] It is involved in air traffic control, aeronautical communications, airport operations, aircraft registration and inspection, licensing of civil air operators, and personnel certification.

[2] The headquarters of the HCAA are located at Glyfada, near the old Ellinikon Airport.

Since its creation in 1931/1952, these people have served as Governor of the Hellenic Civil Aviation Authority: The Hellenic CAA uses a number of remotely operated VHF radio stations for civil aviation communications at the following locations: The HCAA uses a number of radar stations:[4][5] The radar stations are integrated using the PALLAS system (Phased Automation of the heLLenic ATC radar System).

The agency operates a small fleet of aircraft for navigational aid calibration activities.