What does Gillan mean?
Gillan \gi(l)-lan\ as a boys' name (also used as girls' name Gillan) is of Irish and Gaelic derivation, and the meaning of Gillan is "servant of Saint John". Gillan is a variant of Gillean (Irish, Gaelic): related to names like Gilchrist.
Gillan is a rare first name for men but a very popular surname for both adults and children (#16954 out of 150436, Top 11%). (2000 U.S. Census)
Displayed below is the baby name popularity of Gillan for boys. Gillan has not been recorded in the list so far. (Top 1000 Birth Names Records, 2014)
Gillan is pronounced similarly to Gaelan, Galan, Gilon and Gwillyn. Other suggested similar baby names are Dillan▼, Fillan, Gaillen, Gilam, Gillman and Gilman. Like Gillan, these names are not commonly used.