Nithya
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Meaning
eternal, constant (Sanskrit nitya); the th spelling is the standard Tamil romanization, common across Tamil Nadu, Singapore, and Malaysia
The story
Nithya is a Tamil girls' name from the Sanskrit nitya, eternal, constant, unchanging, a word with deep standing in Hindu philosophy where it describes what is permanent against everything that passes. The th spelling is the standard Tamil romanization, distinguishing it from the North Indian Nitya, one of those small spelling signals that tells you which part of India a family calls home. It is rare in US records since 1890, carried by Tamil families in the diaspora, and it appears in our search data more often than the charts would predict, real demand the records have not caught up with. The eternal, worn as a first name: philosophy compressed into six letters. The slight spelling difference carries real linguistic information without changing the name's central idea.
How popular is Nithya around the world?
In the United States, 118 babies were named Nithya between 2020 and 2025.
Nithya is on the official records of the United States.
United States
1 in 180,000
In the United States, 118 babies were named Nithya between 2020 and 2025.
Shape drawn from US Social Security baby-name records. Nithya has stayed rare in US records the whole time: no peak decade to name.
Births with a Social Security record. Source: U.S. Social Security Administration
Canada
last on record 2022
Nithya is not on the 2024 record for Canada, where names under 5 in a year are excluded at source.
The count never rose above 5 in a year, too few to chart.
First given names from provincial and territorial vital statistics across Canada; any name-sex-year under 5 is excluded at source, and small Quebec counts carry a randomized adjustment made at source. Shares divide by Statistics Canada’s count of live births for the year; the 2024 count is preliminary. Source: Statistics Canada, first names at birth (table 17-10-0147-01)
England and Wales
last on record 2022
Nithya is not on the 2025 record for England and Wales, where spellings under 3 in a year are withheld at source.
The count never rose above 4 in a year, too few to chart.
Birth registrations in England and Wales (not the whole UK); exact spellings are counted separately, and any spelling under 3 in a year is withheld at source. Source: Office for National Statistics, baby names in England and Wales
Not on the record in Spain, Mexico City, Argentina, Puerto Rico, Ireland, New Zealand, Scotland and Poland: those registries withhold small counts, so rare uses may sit below their floors.
Not on the Chile record: nametree keeps spellings that reached 5 registrations in some year, so rarer uses are not shown. Not on the Montevideo record for 1940 to 2011: that registry withholds nothing, so this spelling was not given there in those years. Not on the France record: nametree keeps spellings that reached 20 births in some year, so rarer uses are not shown. Not on the South Australia record for 1944 to 2017: that registry withholds nothing, so this spelling was not given there in those years. Not on the Austria record for 1984 to 2025: Statistik Austria publishes every first name down to a single birth, so this name was not given there in those years (before 2010 the record covers babies with Austrian citizenship only). Not on Norway’s list: Statistics Norway lists only first names carried by 200 or more living people, so rarer names are not shown.
When you meet Nithya
Most people given the name Nithya in the United States are children or teenagers today. The name belongs to this generation.
Estimated from US Social Security birth registrations and typical lifespans; a rough guide, not a rule.
Keep exploring
The Nithya deep dive
Whether you’re naming a baby or exploring your own name’s history, this is a personal letter, not a list: where Nithya truly comes from, how it traveled, and what a century of records reveals. If you have grown a tree on nametree, it also considers how Nithya fits with your family’s names and surname.
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