What does Dillan mean?
Dillan \d(il)-lan\ as a boys' name (also used as girls' name Dillan). Dillan's roots are Irish, Gaelic and Welsh, and the name Dillan means "like a lion; loyal". Dillan is a derivative of Dillon (Irish, Gaelic): sounds like Dylan.
Dillan is an uncommonly occurring first name for men but a somewhat prominent last name for both adults and children (#100663 out of 150436, Top 67%). (2000 U.S. Census)
Presented below is the baby name popularity of Dillan for boys. Dillan was first listed in 1991 and reached its apex rank of #553 in the U.S. in the year 1992, but is not found in the list currently. (Top 1000 Birth Names Statistics, 2014)
Shown below is a comparison of the popularity of the boy name Dillan and related names. Popular related forms of Dillan are Dilan (#834 the previous year), Dillon (#398), Dylan (#29), Dyllan and Dylon. These boy names were at the peak of their popularity in 1992 (usage of 0.4827%) and have become much less widespread since (usage 0.2898%, down 40%), with the versions Dillan and Dylon becoming less fashionable. Dillon (#398) and Dylan (#29) are two of the more fashionable names for newborns here. (Top 1000 Birth Names Statistics, 2014)
Dillan▼ is pronounced similarly to Daelan, Dalan, Dallan, Dallen, Dallin▼, Dallon, Daylan and Dolan. Other recommended similar baby names are Fillan and Gillan. Like Dillan, these names are not commonly used.