Climate change is a critical issue for Pacific island countries and the islanders. Although they contribute the least to global warming, Pacific island countries and islanders are at the forefront of one of the immediate consequences that threatens their existence: sea-level rise. Rising sea-level is caused by the expansion of seawater as it warms and the melting of glaciers. As a result, scientists have predicted that some of the land territories of the PICs will become uninhabitable by 2050 or will be fully submerged by 2100. Current studies mainly investigate the effects of sea-level rise on the physical and/or territorial security of the Pacific island countries and islanders. I expand the analytical scope of climate security by distinguishing between physical/territorial security  and ontological security and argue that Pacific island countries and islanders also seek ontological security. Ontological security entails the security of the subjective sense of who one is, i.e. self-identity. Identity is a representation of how actors perceive themselves. 

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