This study investigated the perceptions of second language (L2) English learners from Hong Kong on the speech produced by third language (L3) English learners from the Greater Bay Area (GBA) of China. Twenty L2 learners from a local university were asked to listen to speech recordings from two L3 learners, and then complete an online survey, which focused on comprehension of the speech and four dimensions of language attitudes, namely Appropriateness, Solidarity, Status, and Dynamism. Results showed correlations between the phonological performance of learners and the perception of listeners. Specifically, vowel replacement and addition, as well as consonant addition were found to have a negative correlation with the learners’ actual comprehensibility. Replacing /ə/ with Chinese ‘er’ /ɚ/ only affected their perceived comprehensibility. For perceived attitude, the presence of vowel replacement and addition had an adverse effect on the rating of Dynamism. These two features, along with consonant addition, also negatively affected the rating of Status. Moreover, consonant addition was the sole factor that negatively affected the rating of Solidarity. These findings provided pedagogical insights for learners to communicate in English as well as social implications for language paradigm, particularly in a multilingual and multicultural context such as the GBA. Copyright © 2024 Informa UK Limited, trading as Taylor & Francis Group.