There is no separate English translation for "Hawaiian." The word Hawaiian is the English name for the language whose endonym is 'Ōlelo Hawai'i.
Hawaiian sits alongside Samoan, Tongan, Tahitian, Māori, Tagalog, Chamorro, Marshallese, Chuukese — all Austronesian, but distinct languages, not dialects.
Some researchers note ancient Austronesian substrate similarities (Philippines, Taiwan, Indonesia) — but these are deep phylogenetic echoes, not borrowings. Hawaiian's closest kin are Polynesian.
Hawaiian = English name. 'Ōlelo Hawai'i = Native name. Same language. No translation needed.