This article's factual accuracy may be compromised due to out-of-date information. In particular: many signs are missing, vastly incomplete. Please update this article to reflect recent events or newly available information.(May 2018)
Signs follow the general European conventions concerning the use of shape and colour to indicate function. Thus signs indicating dangers are triangular with a red border, those giving orders are almost all circular (white on blue for mandatory instructions, black on white with a red border for prohibitions), and those providing information are rectangular. Most signs use pictograms to convey their particular meaning.
As is customary in European countries, all signs are partly or fully reflectorized or are provided with their own night-time illumination. Signs used for temporary regulations may have a yellow background colour, as is illustrated with the road works sign.
Greek road signs depict people with realistic (as opposed to stylized) silhouettes.
These signs have mostly triangular shape. Their borders are red and their background is yellow. (Usually in other European countries it is white) They are intended to alert drivers early on of risks, which can then find their course.
Dangerous curve to left
Dangerous curve to right
Dangerous two opposing or continuous curves curves, first to left
Dangerous two opposing or continuous curves, first to right
Steep descent (With slope as indicated on the sign)
Steep ascent (With slope as indicated on the sign)
Road narrows dangerously on both sides
Road narrows dangerously from the left side
Road narrows dangerously from the right side
Road leads to ferry berth or river bank
Dangerous bumpy road in poor condition, with potholes etc.
Dangerously raised road or convex change in the length of the slope
Dangerous gutter or slight change in the length of the slope
Dangerous ejection of gravel (Loose chippings)
Danger due to falling rocks and their presence on the road
Danger due to pedestrian crossing
Danger due to frequent children traffic (Schools, Stadiums, etc.)
Danger due to frequent cyclist entry or cyclist crossing
Danger due to domestic animal crossing
Danger due to wild animal crossing
Danger due to roadworks
Attention, junction or place where the traffic is set by a three-colored traffic signal
Danger due to low-flying aircraft
Danger due to crosswind (From left)
Danger due to crosswind (From right)
Two-way traffic announcement. This sign shall mean an imminent entry from a roadway or from a section of road comprising two lanes separated by direction with an island in a road section with traffic on it is in two directions, either temporarily or permanently.
Attention, other Dangers (Not shown on other signs)
Danger due to level crossing with gates or intersection with tramway line.
Danger due to level crossing without gates
Distance to level crossing or swing bridge
Danger due to immediate proximity to single-track level crossing without gates or intersection with tramway line.
Danger due to immediate proximity to multitrack level crossing without gates or intersection with tramway line.
Soft verges on the left
Soft verges on the right
Frequent traffic queues
Danger due to intersection with tramway line without gates
Danger due to fog
Danger due to parallel pedestrian and bicycle crossings
Danger due to common pedestrian and bicycle crossing
Intersection with a road, the users of which must give way
Intersection with a vertical road in left, the users of which must give way.
Intersection with a vertical road in right, the users of which must give way.
Intersection with an oblique road in left, the users of which must give way.
Intersection with an oblique road in right, the users of which must give way.
Yield. This sign means that at the junction where it's placed, the drivers must give priority to the vehicles that move to the other road
Stop. 1) This sign, when it's placed before a junction, means the mandatory stopping of the vehicle before entering the junction and the prioritization of the vehicles moving on the road to which it is approaching. (2) When placed to points other than a junction, means a mandatory stopping of the vehicle in the position of the sign and not start until the driver is sure that they can do so without risk.
End of Priority road
Priority for oncoming vehicles, because road narrows
Priority over oncoming vehicles (Because road narrows)
Prohibitory signs are round with white backgrounds and red borders.
No entry to all vehicles
Road closed to all vehicles in both directions
No motor vehicles except for motorcycles with two wheels.
No lorries. The number of tons, either in white on the vehicle or on an additional sign placed under the pictured one, means that the prohibition applies only if the maximum permissible weight of the vehicle or the combination of vehicles exceeds this number
No motor vehicle pulling trailer, other than a semi-trailer or trailer with only one axle. The number of tons, either white in the trailer or on an additional sign, which is placed under the pictured, means that the prohibition applies only if the maximum authorized weight of the trailer exceeds this number.
No animal-drawn vehicles
No farm machinery
No motor vehicles
No specific vehicles (eg motor and animal-drawn vehicles)
No vehicles with overall width exceeding (eg 2 meters).
No vehicles with overall height exceeding (eg 3,5 meters)
No vehicles with overall weight exceeding (eg 5 tons)
No vehicles with overall weight exceeding (eg 2 tons) in one axle.
No vehicles with overall length exceeding (eg 10 meters).
No driving with distance less than (eg 70) meters from two vehicles
No left turn
No right turn
No U-turns (180 degree turn)
No overtaking by motor vehicles except motorcycles with two wheels
No overtaking by lorries
The maximum speed is limited to the indicated number (e.g., 90 km) per hour.The number of tons, on an additional sign, which is placed under the pictured, means that the speed limit applies only to vehicles with a total weight exceeding this number.
No horn (Except for avoiding an accident)
Passing without stopping prohibited at customs
Passing without stopping prohibited at toll post
End of all local prohibitions which have been imposed by prohibitory signs on moving vehicles
End of speed limit which have been imposed by a prohibitory sign (eg 60 km/h)
End of overtaking restriction which have been imposed by a prohibitory sign.
No stopping and parking, unless otherwise specified by an additional sign, etc. The prohibitions on these signs apply from the position of the signs to the next meeting point with a road and on the side of the pavement in which they are placed
Alternative parking (prohibited on the sign's side on odd months of year)
Alternative parking (prohibited on the sign's side on the even months of year)
No parking zone (limited-time parking).
End of no parking zone
No vehicles carrying over a certain quantity of explosives or flammable goods
No vehicles carrying over a certain quantity of goods which could pollute water