Tiwi, officially the Municipality of Tiwi is a 1st class municipality in the Province of Albay, Philippines. According to the 2020 census, it has …Tiwi, officially the Municipality of Tiwi is a 1st class municipality in the Province of Albay, Philippines. According to the 2020 census, it has a population of 56,444 people. Friars called the place Tigbi, which evolved into Tivi and, then, finally to its present name Tiwi.