- Language: Baikeno
- Alternate names: Baikenu, Vaikenu, Vaikino, Biqueno, Ambeno, Ambenu, Uab Meto, Uab Pah Meto, Oecussi, Oe Cusi, Oekusi
- Language code: bkx
- Language family: Austronesian, Malayo-Polynesian, Central-Eastern Malayo-Polynesian, Timor-Babar, Nuclear Timor, Uab Meto (SIL classification)
- Number of speakers: 20,000
- Vulnerability: Vulnerable
- Script: Latin script.
Speakers see themselves as part of the wider Atoni cultural, linguistic, and historical network, in contrast to Tetun, Helong, or Rote. Ethnic autonym: atoni, person, speaking uab meto, the language of the dry. Uab Meto refers to the language chain of which Baikeno is a part. Ambeno refers to traditional kingship. Oekusi is the main town in Ambeno, but people in other parts of East Timor use it to refer to the whole enclave. Locals object to this usage. Dawan is considered derogatory by many (the language does not have a, d, and dawan is said to mean enemy). Traditional religion, Christian.
Baikeno is spoken in East Timor, Pacific.