[2][4] The Manobo are considered the most diverse among the many indigenous peoples of the Philippines, with the largest number of subgroups within its family of languages.
[2] The Philippine Statistics Authority listed 644,904 persons as Manobo in its 2020 Census of Population and Housing.
[5] A study by the National Council of Churches in the Philippines had put their population at around 250,000 in 1988, and an earlier NCCA estimate had out their population at about 749,042 in 1994.Part of what makes the classification more difficult is that a dialectical subgroup's membership within a supergroup can shift depending on specific points of view regarding lingusitics.
It is believed that it is derived from the root word tuvu, which means "to grow"/"growth" (thus Man[t]uvu would be "[native]-grown" or "aboriginal").
[6] The Manobo are primarily of Austronesian ancestry, like other Filipino ethnic groups that descend from the Austronesian expansion, but they also have significant Austroasiatic ancestry indicating that part of their ancestors originate via a separate Austroasiatic migration originating from Mainland Southeast Asia.