Alimos (Greek: Άλιμος), Latin and older form: Alimus, is a suburb in the south southwestern part of Athens, Greece. Alimos is also known as Kalamaki (Καλαμάκι, older forms: Kalamakio and Kalamakion). Poseidonos Avenue runs in the western part of Alimos. The Hymettus mountain is to the east and are mainly grasslands while forests are north of Argyroupoli. The nearest Attiko Metro subway station is at Alexandros Panagoulis station and is alco accessed by a tramway which first constructed in the 2000s and first opened stations in 2004. It serves access with the Attiki Odos (number 63) to the east. Vouliagmenis is to the west. It is located S of Athens, SE of Piraeus and NW of Sounio. Alimos is directly located north of the old Ellinikon International Airport which formerly served two entries and several Olympic venues including a basketball arena. The Saronic Gulf is located to its west.
The area were made up of farmlands that were mainly pastures or groves. In the 1940s and the 1970s, urban development and a few businesses replaced much of the farmlands. Much of the area are urbanized. Business lie to the south and along with main avenues.
Alimos has schools, a few lyceums, a few gymnasia, banks, a post office and squares (plateies) including Agia Triada square. A marina is situated to the west serving tens of piers with up to 1,100 boats. The depth ranges from 2 to 7 metres.
The first settlements uncovered by archeologists in Alimos date back to the Neolithic period. The excavation site can be found in the region of Ano Kalamaki right besides Vouliagmenis highway.
In antiquity, Alimos existed as fishing town on the outskirts of the city-state of Athens. Testament to its development during this period are the ruins of a small amphitheater, unique in the ancient world due to its rectangular design. The theater can be found on Ancient Theater Street in Ano (upper) Kalamaki (just a few blocks away from the Neolithic site). It is noteworthy that, while the town is more closely associated with its ties to the sea, as "alimos" in ancient Greek means "belonging to the sea", the main archeological sites are situated at the farthest point of the Municipality from the shoreline.
The most significant historical affiliation of Alimos is that with Thucydides, the father of modern history. Thucydides was born in Alimos and is often referred to as "Thucydides the Alimousian".