In 1908 the district was established as the minor district (
king amphoe) Champako (จำปากอ), which was upgraded to a full district the following year. In 1917 the district was renamed
Bacho. The district was part of Sai Buri Province, which was abolished in 1932. While Sai Buri District came to Pattani Province, Bacho was added to Narathiwat. In 1975, five
Thai Malays were killed by Thai soldiers and their bodies thrown over a bridge into the
Saiburi in Bacho district. The incident, known as , sparked a massive demonstration in
Pattani province, lasting 45 days. ==Geography==