Meaning and name origin
Gillan \gi(l)-lan\ as a boy's name (also used as girl's name Gillan), is of Irish and Gaelic origin, and the meaning of Gillan is "servant of Saint John". Gillan is a variant of Gillean (Irish, Gaelic): related to names like Gilchrist, Gillespie, and Gilmore.
Gillan is not a popular first name for males but a very popular surname or last name for all people (#16533 out of 88799, Top 19%) (2000 U.S. Census).
Displayed below is the baby name popularity of the name Gillan for boys. Gillan has not been ranked in the Top 1000/100 so far. (2014 statistics).
Gillan is also 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.