MallowbyNames

Janus

JAY-nuhs · Gate, archway; the Roman god of beginnings, transitions, and doorways.

Peak popularity
1956
Usually for
Boys
Trend
Holding steady

Holding steady.

Popularity of Janus since 1922

Babies named Janus per year in U.S. Social Security records.

5111619602000Most births 1956GirlsBoys
GirlsBoys
Data table (by decade)
DecadeGirlsBoys
1920s05
1930s50
1940s440
1950s560
1960s150
1970s75
1980s00
1990s06
2000s010
2010s015
2020s00

Meaning & origin

Janus is an extremely rare name in the United States, first recorded in 1936. Its peak year of usage was 1956, when it reached its highest rank, though it has never entered the top 1000. The name has remained stable in its rare usage over the decades, with no significant uptick in recent years. While its historical and mythological weight is considerable, as the Roman god of doorways and beginnings, modern parents have rarely chosen it. The absence of top states and similar names underscores its singularity. For those drawn to mythology or Latin roots, Janus offers a distinctive and meaningful choice, though it may require explanation.

Janus is derived from Latin ianua, meaning 'door' or 'gateway.' In Roman mythology, Janus was the two-faced god of beginnings, transitions, and doorways, often depicted with one face looking forward and one backward. The name was used in ancient Rome, but its modern usage as a given name is rare, mostly appearing in the 20th century. It was first recorded in the U.S. in 1936, with a peak in 1956.

Nicknames & variants

Nicknames: Jan

Sibling names for Janus

Names that share Janus's style, for a brother or sister.

A parent animal hugging its little one, the personalized name page

J is for Janus, our favorite little boy.

J is for Janus…”

In a Mallowby alphabet book, Janus's letter becomes Janus's page: hand-illustrated, printed hardcover or paperback, made just for them.

Make Janus's book

Books for siblings or grandkids? The second book is 15% off.

Questions parents ask

What does the name Janus mean?
Janus means 'gate' or 'doorway' in Latin, and it is the name of the Roman god of beginnings and transitions.
Is Janus a common name?
No, Janus is very rare. In the U.S., it was first recorded in 1936 and had its highest rank in 1956, but it has never appeared in the top 1000 names.
Is Janus a boy's name or a girl's name?
Janus is predominantly used as a boy's name, though it can be considered gender-neutral.