This paper provides an acoustic phonetic description of Hawai‘i English vowels. The data comprise wordlist tokens produced by twenty-three speakers (twelve males and eleven females) and spontaneous speech tokens produced by ten of those speakers. Analysis of these vowel tokens shows that while there are similarities between Hawai‘i English and other dialects, the particular combination of vowel realizations in Hawai‘i English is unique to this dialect. Additionally, there are characteristics of the Hawai‘i English vowel system that are not found in other English dialects. These findings suggest that Hawai‘i English is a unique regional variety that warrants further description.