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Dillian

Boy · DIL-un · Irish

Dillian is a boys' name of Irish origin. Too few babies were given it in the latest year to rank.

What does Dillian mean?

Irish: spelling of Dillion, itself a spelling of Dillon, an Irish surname of Norman origin

Dillon came to Ireland with the Normans; as a first name it is also treated as a spelling of Dylan.

Say it
DIL-un

Meaning borrowed from Dillion.

Is Dillian a girl's or a boy's name?

Dillian is a boys' name.

How popular is Dillian in the US?

No boys in the US were given it in 2025, or too few to be listed. Its busiest year was 1992, with 41 boys. It first appears in the records in 1989.

Half of all the boys named Dillian in the US since 1880 were born between 1995 and 2006, the years shaded on the chart below.

1989Busiest: 41 in 19922021
Dillian in the US, year by year
YearBoysRank
20215#12,141
20206#10,599
20197#9,750
20186#10,754
20177#9,691
20160–
201511#7,061
201414#5,993
201312#6,598
20127#9,703
201110#7,495
201011#7,081
200916#5,551
200816#5,482
200718#4,994
200616#5,299
200522#4,057
200421#4,124
200329#3,181
200227#3,255
200127#3,223
200024#3,417
199931#2,718
199825#3,089
199737#2,257
199634#2,327
199530#2,495
199438#2,118
199338#2,086
199241#1,950
199118#3,319
19900–
19896#6,934

Names like Dillian

Names given in the same years and the same naming tradition, with a similar sound.

Names related to Dillian

More Irish names