Tobog is a barangay in the first class municipality of Oas, Province of Albay, Bicol Region, Philippines. Tobog is one of the barangays that comprises the so-called Mayon Unit which are in the outlying area of Municipality Oas. As of May 1, 2010, the population of Tobog is 1,277 according to the Philippine Statistics Authority.
There are many stories about the origin of the name of the barangay that circulated through word of mouth of Tobog natives wayback Spanish colonization. The most popular, and probably the most interesting fact is that it came from the tree called "Tobog-Tobog" which abounds the place from long time ago. These trees are still visible in the place.