洛琳 is most often the dub name for 'Lorraine' — notably Lorraine Baines, Marty McFly's mother in 《回到未来》 (Back to the Future). It also serves for 'Lauren' in some translations. The slightly different 罗琳 (Luólín) is reserved for J.K. Rowling.
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洛 (luò) handles 'Lor-/Lau-' and 琳 (lín) is a bright-jade character favored for feminine names — Chinese transliterators routinely pick it for foreign names ending in '-ren', '-rine', or '-ryn' to make them feel like a girl's name.