Dejohn \d(e)-jo-hn\ as a boy's name is a variant of De- (American). See for meaning of Dejohn.
The baby name Dejohn sounds like Dajohn and Dejon. Other similar baby names are Dajon, Devonn, DeRon, Delon, DeWonn, Deion, Deon, Devon, Deyon and Deonn.