It is municipality of the province of Quezon, Philippines. It lies on the western shore of the province, 173 kilometers southeast of Manila.
People from Atimonan are called Atimonanins. The primary language is Tagalog, with many local phrases and expressions. Manilans usually understand Atimonan Tagalog, albeit with some frustrations. Many Atimonanins are part Chinese or Spanish. Some Atimonanins can also speak Bicolano, Lan-nang, or Spanish.
The economy of Atimonan is sustained by fishing and agriculture. Many also engage in seafaring. The town is part of the Tourism Highway Program of the Department of Tourism.