Modern compound of Sheri (from Sharon or Cheryl) and Lynn. A 20th-century American blend name.
Sherilyn is a blend name that fuses two distinct naming currents into something genuinely its own. The Sheri- element most likely derives from either Sharon — a Hebrew place name referring to a fertile coastal plain in ancient Israel, famously invoked in the Song of Solomon as "the rose of Sharon" — or from the French term of endearment chérie, meaning "dear" or "beloved," which entered American naming culture through both French Louisiana influence and mid-century Hollywood glamour. The -lyn suffix traces to Welsh and Old English, where "llyn" means lake, though in American naming practice it functions primarily as a melodic feminine ending, popularized by names like Marilyn, Carolyn, and Jacquelyn.
Sherilyn belongs to a creative tradition of mid-twentieth-century American naming that prized feminine compound constructions with soft, flowing phonetics. The era from roughly 1940 to 1970 produced an extraordinary number of such blended names — Sherilyn, Sherylann, Gerilyn, Maralyn — reflecting both a love of individuality and a faith that a beautiful-sounding name was itself a gift to a child. These names were particularly common in the American South and Midwest, where an older tradition of elaborate, musical feminine names remained strong.
The name gained its highest cultural profile through Sherilyn Fenn, the American actress whose portrayal of Audrey Horne in David Lynch's surrealist television masterpiece Twin Peaks made her an icon of early-1990s alternative culture. Her performance brought an eerie grace to the name, associating it with mystery and unconventional beauty. Sherilyn remains a warm, distinctive choice that sounds both vintage and refreshingly uncommon today.