Jacolby is a derivative of the Dutch, English, German, and Scandinavian name Jacob.
Jacolby is also a derivative of the Hebrew and English name Jacoby.
Jacolby is an uncommon baby name for boys. It is not in the top 1000 names. In 2012, within the group of boy names directly related to Jacolby, Jacob was the most popular.
† approx English pronunciation for Jacolby: JH as in "joy (JH.OY)" ; AE as in "at (AE.T)" ; K as in "key (K.IY)" ; OW as in "oak (OW.K)" ; L as in "lay (L.EY)" ; B as in "be (B.IY)" ; IY as in "eat (IY.T)"