A 30 day single entry tourist visa for Cambodia can be obtained upon arrival and is a requirement for all nationalities except those of Laos, Malaysia, Philippines and Singapore, all of whom are exempt from requiring a visa.

Visas are available upon arrival in Phnom Penh and Siem Reap airports and from border checkpoints at the overland crossings in Thailand, Vietnam and Laos. Visitors should be in possession of a passport with validity in excess of six months beyond their intended departure date from Cambodia.

A passport photocopy and a passport sized photograph (3 x 4 cm) are required at all entry points. The visa fee is payable in US $ (currently $20). For most visitors visa on arrival is the most practical option.

A Cambodian Visa can also be purchased in Advance from Cambodian embassies, valid for 30 days from the moment of entry, and must be used within 3 months of the date of issue. 

E-visas are now obtainable online from the Cambodian Ministry of Foreign Affairs and International Cooperation at www.mfaic.gov.kh, but are only valid for air entry at Phnom Penh and Siem Reap.