An Aswang is a mythical creature

Philippine mythical creatures

Philippine folklore, unlike Greek or Roman mythologies, has not been organized into a formal pantheon, does not generally contain long epics, nor has it been relegated to history. To this day, Philippine myths still have an active role in the lives of rural Filipinos. The countless myths...

 in Philippine folklore. The aswang is an inherently evil vampire-like creature and is the subject of a wide variety of myths and stories, the details of which vary greatly. Spanish colonizers noted that the Aswang was the most feared among the mythical creatures of the Philippines, even in the 16th century.

The myth of the aswang is well known throughout the Philippines, except in the Ilocos region, which is the only region that does not have an equivalent myth.