The name Luka, with its origins as both a South Slavic masculine given name (cognate of Luke) and a Japanese given name, refers to a remarkably diverse range of subjects. It famously identifies prominent individuals, including Slovenian basketball star Luka Dončić (born 1999) and Croatian football maestro Luka Modrić (born 1985), alongside a Brazilian singer and historical figures like Hawaiian princess Luka Keʻelikōlani (1826–1883).

Geographically, Luka is a widespread place name, marking numerous villages and municipalities across Central and Eastern European countries such as Bosnia and Herzegovina, Croatia, and the Czech Republic, where it also designates a Prague Metro station. Beyond people and places, the term is culturally significant: it's the title of Suzanne Vega's iconic song, a Czech electric car model (MW Motors Luka EV), and the popular Vocaloid character Megurine Luka. Furthermore, Luka titles two films, released in 1992 and 2023, showcasing its broad application across sports, geography, music, technology, and cinema.