Chelsea \ch(el)-sea\ as a girl's name is pronounced CHELL-see. It is of Old English origin, and the meaning of Chelsea is "chalk landing place". From "cealc hyo", a place name for a port where chalk shipments were received. 20th-century coinage and place name, in reference to the glamorous district in London and several places in America, the earliest of which, in Maryland, was named in 1739. Possibly linked with British pop culture of the late 1960s and songs like Joni Mitchell's "Chelsea Morning". Also possibly influenced by Kelsey. First Daughter Chelsea Clinton was named after the Joni Mitchell song "Chelsea Morning".
Chelsea has 31 variant forms: Celsea, Chel, Chelci, Chelcie, Chelcy, Chele, Chelese, Chelesia, Chelie, Chelisa, Chelise, Chelle, Chelli, Chellie, Chellise, Chellsie, Chels, Chelsa, Chelsae, Chelse, Chelsee, Chelsei, Chelseigh, Chelsey, Chelsi, Chelsia, Chelsie, Chelsy, Chesea, Cheslee and Chessie.