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Millennium

♀ Girl

Pronounced mih-LEN-ee-um /mɪˈlɛn.i.əm/High

Meaning: Millennium is the ordinary English word for a period of one thousand years, from the Latin mille ('thousand') and annus ('year'); it was used directly as a given name around the turn of the year 2000.High

In 30 seconds: Millennium is the English word for a thousand-year span, taken directly as a name around the year 2000. It peaked right on cue in 2000.

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Origin HighEnglish, Latin

MeaningMillennium is the ordinary English word for a period of one thousand years, from the Latin mille ('thousand') and annus ('year'); it was used directly as a given name around the turn of the year 2000.

U.S. rank (2001)#17084 ↘ Falling

2001 U.S. births5 girls (0.00% of U.S. girls)

Peak year2000

Total births (all-time)≈ 32

Popularity in the U.S. · SSA data

U.S. births per year (Social Security Administration, 1880–present). Pink marker = peak year.

SSA data updated May 2026. How we source & verify this data.

History & Origin

Millennium is a straight word-name, taken from the English word for a thousand-year period, itself from the Latin mille, 'thousand,' plus annus, 'year.' Its use as a given name clustered tightly around the turn of the millennium, when the word was everywhere in the culture.

Millennium was never common, given to about nineteen girls at its 2000 peak and to only thirty-two total across a very short run from 1999 to 2001. It reads today as a distinctly time-stamped name tied to a single cultural moment.

Did you know? Millennium's American use is almost perfectly timed to the calendar turn to the year 2000, one of the clearest examples in Social Security data of a word-name inspired by a single calendar event.

Overall data confidence 70%

References - Millennium — English word-name from Latin mille + annus; peak timing matches year 2000

Variations

MileniaMillenia

Nicknames

MillieMilla

Famous Bearers

Famous bearers coming soon.

If you like Millennium…

Genesis— a like abstract-word name from the same era

Destiny— a like word-name popular around 2000

Harmony— a like conceptual English word-name

Eternity— a like time-themed word-name

Explore names like Millennium

By themeword-name uncommon 2000s

All themes →All meanings →All origins →

Frequently Asked

What does the name Millennium mean?

It is the ordinary English word for a thousand-year period, from Latin mille, 'thousand,' and annus, 'year,' used directly as a name.

How do you pronounce Millennium?

It is said mih-LEN-ee-um /mɪˈlɛn.i.əm/, four syllables with the stress on the second.

Is Millennium a boy or girl name?

Millennium is used here as a girl's name.

How popular is Millennium?

It has always been rare in the United States, appearing only in a brief window right around the turn of the year 2000.