The national flag of Cambodia (ទង់ជាតិកម្ពុជា) or the Khmer national flag (ទង់ជាតិខ្មែរ) in its present form was originally adopted in 1989 and readopted in 1993, after the Constituent Assembly election in 1993 and restoration of the Cambodian monarchy.

The current flag, with a blue border and red central (the stripes are in the ratio 1:2:1) was adopted following Cambodia's independence in 1948.

The subsequent state of Democratic Kampuchea, which existed from 1975 to 1979, used a red flag with a three-towered Angkor Wat design retained in yellow beginning in 1976.

When the PRK renamed itself as "State of Cambodia" (SOC) in 1989, the flag's lower half became blue.

This famous Hindu temple site, which dates from the 12th century, was built by the Mahidharapura monarchs.