Siyokoy

Philippine folklore, unlike Greek, Norse or Egyptian 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 circulating throughout the Filipino countryside contain a large variety of mythical creatures. Although there is no scientific evidence for any of these creatures, there is also no shortage in the rural parts of the Philippines of people who believe firmly in their existence. This discrepancy is sometimes rationalized by the explanation that only pure and good mortals are able to see these creatures.

Bakunawa is a dragon in Philippine mythology that is often represented as a gigantic sea serpent. It is believed to be the cause of eclipses. It is believed that he or she was just turned into a dragon as punishment. Bakunawa was a beautiful diwata in the sea; some say she was a naga, and was the most powerful. One night, she saw the seven moons and was captivated by their beauty and longed to possess them. One of the embodiment of the moon descended to the sea to swim with the mermaids. It was Bulan, the adolescent aspect of the moon. The boy moon did not notice Bakunawa. Thinking the boy had ignored her beauty to play with the mermaids enraged her. The following night, she transformed herself into a dragon and devoured the moons. When she had swallowed the last moon, Bathala intervened, so she spit out the moon...

Bungisngis is a one-eyed giant. This Philippine folklore giant lives in forest and woods. It is a happy and a playful cyclops. It is also commonly known as 'Mahentoy' in the northern part of Davao.

Aswangs are shapeshifters. They are human-like by day but transform into different monstrous forms to harass and eat awake humans at night or day, especially pregnant women who are about to give birth. Aswangs can change from a human to an animal form, usually as a big black bird with a long tongue (tiktik), as a half-bodied monster (manananggal) as a bat, a cat, a pig or a black dog. Some aswangs can change form at will, others through the use of foul oils concocted by good magicians (albularyo,manggagaway,manghihilot). Aswangs appear at night (rarely during the day) to prey upon unwary travelers or sleeping people. It is said that they have a peculiar liking for the taste of human liver. The myth of the Aswang is popular in the Visayas, especially in provinces such as Aklan, Capiz, Antique, and Ilo-Ilo. Aswangs (mostly, tiktiks) also have a peculiar liking for the fetus of pregnant women and are said to find their quarry by the scent of the mother, which to the aswang smells like ripe jackfruit. Upon finding the house of the pregnant mother, the tiktik alights on the roof from where it stretches its tongue until it is as thin as a thread and uses it to enter the womb and feast on the fetus. The only way to prevent this creature is to put your brooms upside down, to put a "badiawan twig" all over your windows, or to put a blessed or a magic dagger in any parts of the house.

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Wikipedia