Native toPhilippines
Native speakers
(10,000 cited 1975)[1]
Language codes
ISO 639-3ksn

Kasiguranin (Casiguranin) is a Tagalogic language that is indigenous to the Casiguran town of Aurora in the northern Philippines. It is descended from an early Tagalog dialect that had borrowed heavily from Northeastern Luzon Agta languages.[2]

Dilasag, Dinapigue, Maconacon, and Divilacan are primarily Ilocano-speaking towns just to the north of Casiguran.


  1. ^ Kasiguranin at Ethnologue (18th ed., 2015) (subscription required)
  2. ^ Robinson, Laura C.; Lobel, Jason William (2013). "The Northeastern Luzon Subgroup of Philippine Languages". Oceanic Linguistics. 52 (1): 129. doi:10.1353/ol.2013.0007. JSTOR 43286764. S2CID 143927521.