Isobelle \i-so-belle, isob(el)-le\ as a girl's name is a variant of Isabel (Hebrew), and the meaning of Isobelle is "God's promise".

The baby name Isobelle sounds like Isabelle, Isobella and Isobell. Other similar baby names are Isobel, Isabella, Yzobelle, Izabelle, Isabell, Isabele and Ysabelle.