Dechanel is of French origin, derived from the Germanic element 'Theud-', meaning 'people', and '-helm', signifying 'helmet' or 'protection'. This name was popularized by actresses Olivia De Havilland and her sister Joan Fontaine, who were born with the surname De Havilland but used their mother's maiden name, Dechanel, professionally. The name has since been associated with Hollywood glamour and sophistication.
There were five babies named Dechanel born each year for one decade starting from 1999.