The Philippines are islands. And they are in the Pacific Ocean. So I guess in that sense the Filipino people could be called “Pacific Islanders.”
That does not, of course, make them Polynesian any more than it makes them Micronesian or Melanesian.
They ARE Austronesian. The Pacific Islanders are Austronesian, too. Austronesian is a higher-level language taxon that includes these major groups:
- Taiwanese aboriginal
- Indonesian
- Oceanic.
The languages of the Philippines such as Tagalog, Ilocano, Cebuano, etc., are part of the Indonesian group of Austronesian. Other languages in the Indonesian group are Malay, Javanese, Malagasy, and Cham (Cham is spoken in Cambodia and Vietnam, and is the only Austronesian language native to a continental mainland instead of islands. The Malay language is spoken on the mainland, but it originated on Indonesian islands.)
Polynesian, Melanesian, and Micronesian are the subdivisions of the Oceanic group of Austronesian languages. They are related to the Philippine languages, but are in a different group of Austronesian, more closely related to Malay. As syncrolecyne noted above, the Filipinos are of Malay origin.
There is a linguistic continuity connecting Malay and Tagalog which runs all the way across northern Borneo and the Sulu Archipelago, in which the dialects blend gradually from Malay to Philippine. The languages spoken in northwestern Borneo, like Iban, are closer to Malay, and the languages in northeastern Borneo, like Kadazan, are quite similar to the Philippine dialects of Sulu. See The Malay Peoples of Malaysia and Their Languages by Asmah Haji Omar (Kuala Lumpur, 1983).
If the Filipinos are to be considered Latino by virtue of having a bit of Spanish ancestry in the mix, then so must the peoples in former Spanish colonies of Africa, like Rio Muni, Fernando Poo, Western Sahara, and Sidi Ifni, plus the towns of Ceuta and Melilla on the coast of Morocco. However, I have never heard of these African peoples described as “Latino” and somehow I don’t think we ever will.
For that matter, what about the Netherlands? Maybe the Dutch should be considered Latino.