[ 2 syll. wi-(l)der, wil-d-er ] The baby boy name Wilder is pronounced as WAYLDD-er †. Wilder is used predominantly in the English language and its origin is Old English. The name's meaning is untamed. The name Wilda (English) is the female version of Wilder. Wilde, Wildey, Wylde, and Wylder are variants of Wilder. Wild (short form) is another variant of Wilder.