Chalk landing place
A modern phonetic spelling of Chelsea, which originally referred to a manor or landing place on the Thames river in London. The name is derived from Old English elements meaning a wharf for limestone or chalk.
Less common today
Chealsey isn't in the latest US Top 1000. It last peaked at #5,703 in 1992.
US births per 5-year period, 1990βpresent (SSA data).