|(10,000 cited 1975)|
Kasiguranin (Casiguranin) is the language of Casiguran town in the northern Philippines. It is descended from an early Tagalog dialect that had borrowed heavily from Northeastern Luzon Agta languages.
Dilasag, Dinapigue, Maconacon, and Divilacan are primarily Ilokano-speaking towns just to the north of Casiguran.
- Kasiguranin at Ethnologue (18th ed., 2015)
- Hammarström, Harald; Forkel, Robert; Haspelmath, Martin; Bank, Sebastian, eds. (2016). "Kasiguranin". Glottolog 2.7. Jena: Max Planck Institute for the Science of Human History.
- Robinson, Laura C. and Jason William Lobel (2013). "The Northeastern Luzon Subgroup of Philippine Languages." Oceanic Linguistics 52.1 (2013): 129.