Oecussi-Ambeno (also Ocussi) is a province of East Timor. It is located on the western part of Timor island. It is detached from the rest of East Timor, and borders the sea and the Indonesian part of Timor. The capital of the province is Pante Makasar, also called Ocussi Town.

It was in Pante Makasar that an Indonesian fifth column raised the Indonesian flag and took control of the enclave on 29th November, 1975, a week before the Indonesian invasion of East Timor proper. However, even under Indonesian rule, Oecussi-Ambeno was administered as part of the province of East Timor (Timor Timur in Indonesian), just as it was as part of Portuguese Timor. Consequently, it became part of the independent state of East Timor in 2002,

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