| Budong-Budong | |
| Nativename: | Tongkou |
| States: | Indonesia |
| Region: | West Sulawesi |
| Speakers: | 180 |
| Date: | 2010 |
| Ref: | e25 |
| Familycolor: | Austronesian |
| Fam2: | Malayo-Polynesian |
| Fam3: | South Sulawesi |
| Fam4: | Seko |
| Iso3: | bdx |
| Glotto: | budo1241 |
| Glottorefname: | Budong-Budong |
Budong-Budong is an Austronesian language of Sulawesi, Indonesia, spoken in the village of Tongkou, Budong-Budong District, Central Mamuju Regency. Together with Seko Padang, Seko Tengah and Panasuan, it belongs to the Seko branch of the South Sulawesi subgroup.[1]