Recorded 1978–2014 Boys' name Peak 1999 57 births

Nii — boys' name

57 babies named Nii in U.S. Social Security records since 1978, with the highest year being 1999. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.

1970s71980s121990s142000s182010s6
2000s
Peak decade

32% of everyone ever named Nii was born in this single decade.

1999
Single peak year

8 babies were named Nii in 1999 — its busiest year on record.

What the Data Says About Nii

The Social Security Administration has registered 57 babies named Nii between 1978 and 2014, spanning 37 consecutive years of U.S. birth records. As a boy's name, Nii currently falls outside the top 1,000 boys' names for 2014. The name reached its historical peak in 1999, when 8 babies received it in a single year.

Decade-level aggregation shows that Nii performed strongest in the 2000s, accumulating 18 births during that ten-year window. Across the 5 decades of recorded activity, Nii shows notable generational variation in parental adoption.

No etymological entry is currently available for Nii in our reference dataset. These figures derive from SSA's annual national and state-level name files, which include any name appearing at least five times in a given year or state-year; names below that threshold are suppressed for privacy and therefore excluded from the totals shown here. The 57 total represents a lower bound — actual usage may be higher in years or states where the count fell below the disclosure floor. This page is provided for informational and research purposes only and does not constitute personal, legal, or naming advice.

Nii at a glance

Last recorded 2014

Total births

57

Since 1978

37 years of records

Peak year

1999

8 births that year

Strongest decade: 2000s

Current rank

Unranked

Outside the modern top-1,000

As of 2014

Active since

1978

Recorded for 37 years

Last year on file: 2014

Nii popularity over time

Annual U.S. births registered with the Social Security Administration · 2014–1978

Last recorded 2014
Peak year (1999)
8
Annual births at peak — across 37 years of records
456789 201420062005200219991997198219801978 7

Nii by decade

Total births in each ten-year window — peak vs trough at a glance

Peak: 2000s
Peak decade
2000s
18 births that decade — 32% of Nii's all-time total
1970s71980s121990s142000s182010s6

Frequently Asked Questions

How popular is the name Nii?
57 babies have been named Nii since 1978. It was last recorded in 2014. The peak year was 1999 with 8 births.
When was Nii most popular?
Nii was most popular in the 2000s decade with 18 total births. The single peak year was 1999.
How long has the name Nii been used?
Nii has been recorded in Social Security data since 1978, spanning 37 years of data through 2014.
What names are similar to Nii?
Names with a similar sound or spelling include Niilo. These share a common prefix and are also used for boys.

Data Sources

Data as of 2024. Source: U.S. Social Security Administration (SSA).

Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications — National Data, 1978–2014 (ssa.gov/oact/babynames). National-level data includes all names with 5 or more occurrences in a given year.

State-level: Source: U.S. Social Security Administration, Baby Names — State-Level Files (namesbystate.zip). Includes all names with 5 or more occurrences per state per year; rarer names are excluded for privacy.