Yes, United States Citizens must have a valid Cambodian visa, regardless of their place and purpose of visit.
United States citizens may obtain a Cambodian visa on arrival for tourism or business purposes, for a maximum stay of 30 days. Extensions are possible.
United States citizens may also apply for an e-visa prior to arriving in Cambodia. The e-visa allows for a single entry and a maximum stay of 30 days for tourism purposes.
United States citizens holding the Cambdoain e-visa may enter via the following entry points:
Transit passengers who are leaving on the same arrival aircraft do not need a visa when transiting through Phnom Penh International Airport.
List of countries that you can visit visa free with an United States passport in 2023:
To ease your worries, we've prepared a travel checklist for your convenience: