This paper contributes to our conceptualization of linguistic identities in English as a lingua franca (ELF) communication by analyzing a group of multilingual international students' narrativized accounts of their ELF communication experiences in an international university in Hong Kong. The findings of the study indicate that despite their status as L2 speakers, the participants considered themselves as legitimate speakers of English when interacting with others through ELF. Moreover, they oriented to their national cultural identities and personal identities indexed through their accents in ELF communication. Their frequent use of ELF with other students from diverse linguacultural backgrounds also prompted them to identify positively with a local ELF-using community and envision their imagined identities as members of a global ELF-using community. The findings further reveal that the participants' ELF communication experiences opened up a space for them to take on new and alternative L2-speaking personal identities which they perceived to be markedly different from and more desirable than their L1-based selves. Overall, the analysis provides empirical support for applying a tripartite model of linguistic identity for understanding ELF communication experiences and calls attention to the multidimensional nature of linguistic identities and the interrelatedness between different dimensions of linguistic identities in ELF communication.