Information

Police in Athens

Police Station

This is the central police station in Ambelokipi. Visitors will find the Pangrati location more convenient. Police specifically (rather than all emergency services) are available by calling 100.
Left Luggage in Monastiraki & Psyrri

Athens Lockers

Conveniently located left-luggage facilities. Also has laundry service (from €8), as well as cabins (from €15, accessible till midnight) where you can change clothes, store your gear and use a shower.
Tourist Information in Acropolis Area

EOT

Free Athens map, transport information and Athens & Attica booklet. There's also a desk at Athens Airport (9am to 5pm Monday to Friday and 10am to 4pm Saturday).
Booking Service in Syntagma & Plaka

Athens & Epidaurus Festival Office

This is the place to buy student or senior tickets for the Athens & Epidaurus Festival. It usually starts selling tickets in May.
Embassy in Kolonaki

Turkish Embassy

Also has a consulate in the Psyhiko neighbourhood of Athens, and one in Thessaloniki.
Left Luggage in Syntagma & Plaka

LeaveYourLuggage.gr

A short walk from Syntagma, this is a convenient place to leave your bags for the day. Also offers boarding-printing, tours and bag delivery.
Post in Syntagma & Plaka

Syntagma Post Office

This isn't the official central post office, but it may as well be, as it has the longest opening hours and is most conveniently located.
Embassy in Athens

US Embassy

Also has a consulate in Thessaloniki.
Medical in Athens

SOS Doctors

Pay service with English-speaking doctors who make house (or hotel) calls.
Bank in Syntagma & Plaka

Onexchange

Exchanges travellers cheques and arranges money transfers.