Jancsi \j(a)-nc-si, jan-csi\ as a boy's name is a variant of John (Hebrew), and the meaning of Jancsi is "God is gracious".

The baby name Jancsi sounds like Uncas, Aengus, Angus, Anngus and Yannakis. Other similar baby names are Janos, Janse, Janus and Janusz.