Wilbert \wi-lbe-rt, wil-bert\ as a boy's name is pronounced WIL-bert. It is of Old German origin, and the meaning of Wilbert is "bright will". Used occassionally in the 19th and 20th centuries.
Wilbert has 5 variant forms: Wilber, Wilberto, Wilbur, Wilburn and Wilburt.
For more information, see also the related name Bert.