Road signs in Cambodia (Khmer: ឧបសម្ព័ន្ធស្តីពីសញ្ញាចរាចរផ្លូវគោក) are standardized road signs are similar to those used in Europe but much of it resembles road signage systems used in South American countries with certain differences.^{[citation needed]} The designs of road signage match their neighbours of Thailand and Malaysia, both of which adopt a modified version of the South American road signage system (despite both Thailand and Malaysia being part of Asia).^{[citation needed]} Until the early 1980s, Cambodia closely followed American, European, Australian, and Japanese practices in road sign design, with diamond-shaped warning signs and circular restrictive signs to regulate traffic. Unlike Thailand and Malaysia, Cambodia does not use the FHWA Series fonts ("Highway Gothic") typeface, favouring Helvetica instead.^{[citation needed]}

Cambodian traffic signs use Khmer, the national language of Cambodia, however, English is also used for stop and important public places such as tourist attractions, airports, railway stations, and immigration checkpoints. Both Khmer and English are used on directional signage. Cambodia signed the Vienna Convention on Road Signs and Signals, but has yet to ratify the convention.^[1]

• Prohibitory signs
• No left turn
• No right turn
• No U-turns
• No entry
• Closed for all vehicles
• Closed for all road users
• Total weight limit
• Weight limit on one axle
• Height limit
• Width limit
• Length limit
• No entry for bicycles, motorcycles or tricycles
• No entry for motorcycles
• No entry for passenger cars
• No entry for large-sized truck
• No entry for large-sized bus
• No entry for all motor vehicles
• No entry for bicycles
• No parking or waiting
• No stopping or standing
• No parking from 1st to 15th day of the month
• No parking from 16th to 31st day of the month
• No parking or waiting on odd days
• No parking or waiting on even days
• No overtaking
• End of overtaking prohibition
• No overtaking for trucks
• End of overtaking prohibition for trucks
• No overtaking of trucks by trucks
• End of prohibition for truck overtaking truck
• No motor noise
• End of motor noise prohibition
• No entry for motorcycle-drawn vehicles
• No entry for animal-drawn vehicles
• No entry for hand carts
• No entry for tractors
• No entry for towed trailers
• Minimum separation distance for light vehicles
• Minimum separation distance for trucks
• No entry for vehicle loading inflammable or explosive goods
• Maximum speed limit
• End of maximum speed limit
• Stop at the customs station
• Stop at the police station
• Stop at the military police station
• Speed limit 20 km/h
• Speed limit 50 km/h

• Mandatory signs
• Keep right
• Keep left
• Turn right ahead
• Turn left ahead
• Proceed straight or turn right.
• Proceed straight or turn left
• Turn right
• Turn left
• Turn left or right
• Straight through only
• Passenger cars only
• Animal drawn vehicle carts of all form only
• Pedestrians only
• End of pedestrians only
• Pedestrians and bicycles only
• End of pedestrians and bicycles only
• Minimum speed limit
• End of minimum speed limit
• Bus lane
• End of bus lane
• Bicycles only
• End of bicycles only
• Keep right
• Slow down

• Priority signs
• Stop (at intersection)
• Stop (at intersection, Khmer only)
• Yield (at intersection)
• Yield (at roundabout)
• Priority intersection
• Priority road
• End of priority road
• Yield to all traffic from the opposite direction
• Priority over all traffic from the opposite direction
• Single track Railroad Crossing
• Double triple railroad Crossing

• Warning signs
• Be careful/other danger
• Curve to right
• Curve to left
• Double curve first to right and then left
• Double curve first to left and then right
• Winding road
• Road junction on the right
• Road junction on the left
• Y-junction ahead
• T-junction ahead
• Road junction on the left
• Road junction on the left (different road classes)
• Road junction on the right
• Road junction on the right (different road classes)
• Staggered junction, right turn first
• Staggered junction, left turn first
• Crossroad
• Crossroad on the left (different road classes)
• Crossroad on the right (different road classes)
• Roundabout
• Two-way traffic zone
• Carriageway way narrows
• Carriageway way narrows on the right
• Carriageway way narrows on the left
• Sharp right turn
• Sharp left turn
• Sharp right turn and left turn
• Sharp left turn and right turn
• Railway crossing on right road
• Railway crossing on left road
• Railway crossing with barrier or gate
• Railway crossing without barrier or gate
• Steep ascent
• Steep descent
• Bump
• Uneven surface
• Children
• Pedestrian crossing ahead
• Handicap crossing
• Domestic animals
• Wild animals
• Slippery road
• Landslide
• Loose gravel
• Cross wind caution
• Traffic lights ahead
• Stop sign ahead
• Yield sign ahead
• Divided road
• End of divided road
• Low flying air craft
• Bike crossing
• Riverbank ahead
• Junction on a curve (different road classes)
• Crossroad on a curve (different road classes)
• Junction on a double curve (different road classes)
• Crossroad on a double curve (different road classes)

• Temporary signs
• Road works ahead
• Road works
• Loose gravel
• End road works
• Detour to the right
• Detour to the left
• Traffic cone
• Direction Chevron to be followed
• Temporary Stop sign
• Temporary Go sign
• Red-Flag

• Direction signs
• Direction sign to cities or provinces (at detour)
• Direction sign to cities or provinces (at junction)
• Direction sign to cities or provinces (at junction)
• Direction sign to other areas (at detour)
• Direction sign to other areas (at junction)
• Guide sign to other places
• Guide sign to other places
• Directions to city or province
• Weigh station
• Weigh station

• Build up Area and Boundary signs
• Built-up area
• End built-up area
• Provincial, district or commune boundary
• End of provincial, district or commune boundary

• Information signs
• Parking lot
• Pay parking lot
• Pedestrian crossing
• Bump
• Ferry
• First aid Station
• Hospital
• Telephone
• Official tourist information
• Petrol station
• Petrol station and repair
• Garage station
• Restaurant
• Cafe
• Hotel or guest house
• Picnic site
• Airport
• Boat ramp
• Camping area
• Caravan park or site
• Caravan park and camping area
• Taxi station
• Toilet gender
• Drinking water
• Litter bin
• Side-by-side cycling permitted
• Dead end
• Dead end on right road
• Dead end road on left road
• Expressway begins
• Expressway ends
• Compulsory lanes
• 3 lanes merge to 2 lanes from left
• 3 lanes merge to 2 lanes from right
• Detour for turning left
• Detour for vehicle having overall height exceeding specified height
• Arrow direction exclusive lane
• Arrow direction exclusive lane
• One-way traffic
• Forest Fire Warning sign

• Supplementary signs
• Bike
• Motorcycles
• Motorcycle-drawn vehicles
• Cars
• Bus
• Large-size truck
• Tractors
• Animal drawn vehicles
• Vehicles having overall length weight limit on one axle exceeding the specified weight limit on one axle
• Large-size truck having overall length exceeding the specified length
• Vehicles having over all length width exceeding the specified width
• Vehicles having over all length height exceeding the specified height
• To the right hand side
• To the right and left hand side
• To the left hand side
• Forward
• Forward and backward
• Backward
• Beware of trains
• Factory gate
• Direction of priority road
• Direction of priority road
• Distance identification marker
• Time identification marker
• Vehicles loading inflammable goods

• Signs posts
• Delineator post
• Guide post (at dangerous curve)
• Chevron marker (to the right)
• Chevron marker (to the left)
• Object marker (on the right)
• Object marker (on the curve)
• Object marker (on the left)
• Railway crossing post

• Single yellow solid line
• Double yellow solid line
• Single white broken line
• White single solid line
• Edge line
• Straight arrow
• Keep right arrow
• Keep right arrow
• Keep left arrow
• Diagonal hatched markings (two-way road)
• Chevron markings (one-way road)
• Road hump marking
• Bus stop marking