Tinambac, officially the Municipality of Tinambac (Central Bikol: Banwaan kan Tinambac; Tagalog: Bayan ng Tinambac), is a municipality in the province of Camarines Sur, Philippines. According to the 2024 census, it has a population of 69,860 people.

The town of Tinambac was considered to be a trading center of villages surrounding the eastern side of Mt. Isarog. It was in this place where tobacco, then a prohibited product, was exchanged by the townspeople of Tinambac.

Its establishment as a separate municipality occurred during the latter part of the 18th century and this was known as the mission post of Himoragat. In 1829 when the Spanish administration divided the province of Camarines Sur into four districts, Tinambac fall under the District of Isarog.

A church was built atop a hill which still stands at present where the residents of this simple town give way to the celebration of its fiesta every 17th day of May. St. Pascual Baylon is the patron saint of this town.

Tinambac is politically subdivided into 44 barangays. Each barangay consists of puroks and some have sitios.

In the 2020 census, the population of Tinambac was 70,176 people, with a density of 200 inhabitants per square kilometre or 520 inhabitants per square mile.

Bikol is the predominant language.

Poverty incidence of Tinambac