South Athens (regional unit)

The Hellinikon Olympic Canoe/Kayak Slalom Centre is located in the Hellinicon Olympic Complex in Athens, Greece. The venue hosted the canoe slalom events for the 2004 Summer Olympics. It consists of a competition course, a secondary training course, and a warm-up lake of natural form that occupies a total area of 27,000 square metres. The total land surface area consists of 288,000 square metres. The facility seats 7,600 spectators, though only 6,700 seats were made publicly available for the Olympics. The Olympic Canoe/Kayak Slalom Centre of Athens is unique because it used salt water, rather than fresh water, to inundate the course. As of August 2014 the venue lies in a state of disuse, with the course drained.

Olympic Airways Flight 411 was a flight from Ellinikon International Airport bound for John F. Kennedy International Airport and operated by Olympic Airways using a Boeing 747-200. On August 9, 1978, the flight came close to crashing in downtown Athens. Despite maneuvers near the edge of the flight envelope, none of the 418 passengers and crew suffered serious injury. Boeing reported that there was an "engine shut down" while taking off. Based upon review of the flight data recorder, Boeing concluded that nine seconds after takeoff, the flight crew had turned off the water injection pumps in response to warnings, which reduced thrust. Turning off the pumps when the plane was in takeoff climb limited the plane's ability to climb. Boeing states that thrust was increased manually after 325 seconds and then the plane climbed normally. Captain Sifis Migadis and Captain Kostas Fikardos managed to keep the aircraft in the air at an extremely low altitude below minimal speed. All Boeing simulations of the flight resulted in crashes.

Hellinikon Stadium is a stadium located at the Hellinikon Olympic Complex in Hellinikon, Athens, located approximately 8 kilometres south of the center of Athens, near Glyfada on the Aegean Sea coast. Ethnikos Piraeus F.C. currently plays its home matches there. The complex was built on the site of the former Hellinikon International Airport for the staging of the 2004 Summer Olympics and 2004 Summer Paralympics and consisted of the following venues: Hellinikon Indoor Arena (Basketball and Team handball); Hellinikon Fencing Hall; Olympic Hockey Stadium (Field hockey); Helliniko Baseball Centre; Hellinikon Olympic Softball Stadium; and Hellinikon Slalom Centre (Whitewater slalom).

Halimus or Halimous (Ancient Greek: Ἁλιμοῦς, Latin: Halmius) was a deme of ancient Athens, said to have been so called from τὰ ἅλιμα, sea-weeds, was situated on the coast between Phalerum and Aexone, at the distance of 35 stadia from the city of Athens. It had temples of Demeter and Core, and of Heracles. Halimus was the deme of Thucydides the historian. The site of Halimus is located north of modern Ag. Kosmas.

The Hellinikon Olympic Hockey Centre was the site of the field hockey events at the 2004 Summer Olympics in Athens. Located in the Hellinikon Olympic Complex, the facility consists of two hockey fields. The larger stadium seats 7,200 fans – though only 5,200 seats were made publicly available during the Games, and the smaller stadium seats 2,100 spectators – though only 1,200 seats were made publicly available during the Games. The facility was completed on February 29, 2004, and officially opened on August 11, 2004, shortly before the beginning of the Games. During the 2004 Summer Paralympics, the Olympic Hockey Centre was the venue for Football 5-a-side and Football 7-a-side competitions. The hockey centre has since fallen into disuse and disrepair. No hockey has been played at the centre since the end of the 2004 Olympic Games.

The 1973 Hellinikon International Airport attack was an attack at the Hellinikon International Airport at Athens, Greece. The two attackers were members of the Palestinian militant organization Black September. The militants used sub-machine guns and grenades against the passengers waiting in the passenger lounge. The attackers took hostages before they finally surrendered to the Greek police. It is believed that the gunmen wanted to hijack a plane, but they decided to attack when they were about to be searched by a Greek security inspector before boarding.

The Hellinikon Olympic Softball Stadium is a softball stadium located in the Hellinikon Olympic Complex in Athens. It hosted the softball competitions during the 2004 Summer Olympics in Athens. The venue consists of a main softball field of 4,800 seats - though only 3,400 seats were made publicly available during the games - and 2 warm-up fields nearby. Construction on the facility was completed on 29 February 2004, and it was officially opened on 30 July 2004. Softball however, has not been played at the stadium since the end of the 2004 Olympic Games. One minder of the stadium commented that, "The softball [stadium] is in perfect working order. It is not abandoned. It's just that nobody ever plays softball". The stadium has since fallen into disuse and disrepair.

The Hellinikon Fencing Hall was a multi-purpose indoor sporting arena that was located adjacent to the Hellinikon Olympic Arena, in Hellinikon, Athens, Greece. The venue was part of the Hellinikon Events Hall of the Hellinikon Olympic Complex. It was demolished in 2022.

The Hellinikon Olympic Indoor Arena was a multi-use sports indoor arena that was located in Elliniko, a suburban town in the southern part of the Athens urban agglomeration, Greece. It was a part of the Hellinikon Olympic Complex, and it was located adjacent to the Helliniko Fencing Hall. It was approximately 10 miles from the Athens Olympic Village. It was built on the site of the former Hellinikon International Airport for the 2004 Summer Olympics and the 2004 Summer Paralympics. The arena had in use its full seating capacity of 15,000 spectators for basketball, and 13,500 for handball during the 2004 Summer Olympic Games. However, only 12,500 seats were made available to the public for the basketball tournament, and only 10,700 for the handball tournament. After the Olympics, only the lower tier 8,500 seats have been made available by the arena's owners for public use. However, the arena can still hold 15,000 for basketball with the upper tier in full use. The arena was also known as the National Athletic Center Elliniko "Makis Liougas". It was demolished in 2022.

Argyroupoli (Greek: Αργυρούπολη) is an intermediate station on Athens Metro Line 2. It opened with the Elliniko extension on 26 July 2013. The station is adjacent to Vouliagmenis Avenue.

Elliniko (Greek: Ελληνικό) is the current southern terminus on Athens Metro Line 2 since the Elliniko extension opened on 26 July 2013. With the opening of the station, travel time from Elliniko to Syntagma Square was reduced from 45 minutes (by car) to 20 minutes.

The Hellenikon Metropolitan Park (also called "the Ellinikon") is an urban development under construction in Hellinikon, Athens, Greece, on the site of the former Hellenikon International Airport.It is to include a park as well as luxury homes, hotels, a casino, a marina, shops, and offices and will have Greece's tallest buildings reaching up to 200 meters in height. Construction had been scheduled to begin in 2008 and be completed by 2013, but the plans were shelved in the midst of the financial crisis. In July 2020, work began on the park and is due to be completed in 2024, while the Riviera Tower and Hard Rock Hotel Casino are due to be completed by 2026.