Jocko is a derivative of the English and Dutch Jack.
Jocko is also a derivative of the English and Hebrew James.
Jocko is also a derivative of the Scottish, English, and Gaelic Jock.
See also the related category hebrew.
Jocko is not popular as a baby boy name. It is not in the top 1000 names. Within the family of boy names directly related to Jocko, James was the most regularly used in 2018.
† approx English pronunciation for Jocko: JH as in "joy (JH.OY)" ; AA as in "odd (AA.D)" ; K as in "key (K.IY)" ; OW as in "oak (OW.K)"