Siruma, officially the Municipality of Siruma, is a 4th class municipality in the province of Camarines Sur, Philippines. According to the 2020 census, it has a population of 19,419 people. Siruma belonged to several towns before it became an independent town of its own. Years back, the municipality of Siruma was under the jurisdiction of Quipayo, considered to be one of the oldest parishes in the Archdiocese of Nueva Caceres. Now, Quipayo is a barangay of Calabanga town.