Faithful or loyal; son of Dill
Dillard is an English surname-turned-first name. It is most likely a patronymic form of the medieval name Dill, which itself was a diminutive of names like Dilwyn or a nickname for a faithful person.
Less common today
Dillard isn't in the latest US Top 1000. It last peaked at #3,613 in 1992.
NASCAR driver
American pioneer and early settler
US births per 5-year period, 1990βpresent (SSA data).