Willidean is a unique and distinctive given name of American origin, derived from the English surname Willett, which itself is an Anglicized form of the Old German name Wilhalm, composed of the elements 'will' meaning strong-willed or resolute, and 'helm' denoting helmet or protection. This name has gained popularity in recent years, likely due to its uncommon yet appealing sound and its association with the more familiar Wilhelm or William.
Willidean had a fluctuating popularity with peaks in 1925-1926 and 1938, experiencing a slight decline by 1930-1931, totaling 29 births over the specified years.