Den \den\ as a boy's name is a variant of Dennis (Greek, English) and Dennison (Old English), and the meaning of Den is "follower of Dionysius; son of Dennis".

The baby name Den sounds like Dan, Dean, Deyn, Dene, Deen, Deon and Don. Other similar baby names are Del, Ben, De-, Dee, Des, Dev, Ken, Len, Pen and Ren.