Meaning and name origin
Isobelle \i-so-belle, isob(el)-le\ as a girl's name is of Hebrew origin, and the meaning of Isobelle is "God is my oath". Isobelle is a variant of Isabel (Hebrew): Spanish variant of Elizabeth.
Isobelle has 12 variant forms: Isabele, Isabell▼, Isabelle▲, Isobel, Isobell, Izabel, Izabelle, Ysabel, Ysobel, Yzabelle, Yzobel, Yzobelle.
Isobelle is not a popular first name for females and an equally uncommon surname or last name for all people (2000 U.S. Census).
Displayed below is a comparison of the popularity of the girl name Isobelle and its variant forms. Popular variation forms ranked in the Top 1000/100 are Isabelle (#96), Isabel (#144), Izabelle, Isobel and Isabell. (2014 statistics).
Isobelle is also pronounced similarly to Ysabelle. Other suggested similar baby names are Isabella▲ and Isobella. These names tend to be more commonly used than Isobelle.