As a Family name it is explained as an abbreviation of Hubertz (Yiddish & Sorbian form of Huberowitz) meaning "Houber's son" or "(son) of Heber" or simply Heberite.
As a first name it is most commonly explained from Teutonic combining the elements Mind (Hu) + Bright (Bert). It was most popular in Belgium after the Belgian Saint Hubert whose legend is built around a popular Transylvanian motif. This is not surprising when considering its Huber element as a derivation of Heber.
It also occurs in the following variations:
Hubbard Huppertz Huppert Hupert Hobart Hibbert Kubers Coopers Kubritz Heberite etc.. (please add more)