Nikka is a gender-neutral name of Japanese origin, meaning 'light, sun.' It's composed of two kanji characters: '日' (ni) meaning 'sun,' and '香' (ka) meaning 'fragrance' or 'aroma.' The name gained international recognition through the Nikka whisky brand established by Masataka Taketsuru in 1934.
"Over the course of these years, Nikka's popularity as a name fluctuated, with peaks in the late seventies and early eighties, reaching a high of 16 births in 1974. However, it has since become less common, with fewer than 10 births recorded in most recent years."