Jacq \j(a)-cq\ as a boy's name is a variant of Jack (Old English). See for meaning of Jacq.
The baby name Jacq sounds like Jaq and Jaco. Other similar baby names are Jago, Jacan, Jak, Jacqin, Jacky, Jacko, Jax, Jacob, Jake, Jock, Jacque and Jacot.