Sidonia
Sidonia is classified as a female given name in our dataset. A first name alone does not establish someone’s gender or preferred form of address.
Confidence describes the weight of the source data, not a measured accuracy rate.
Sidonia · Sidónia
- Verdict
- Female
- Confidence
- Medium (source weight 8 to 63; not an accuracy rate)
- High source frequency in
- United States, Portugal, Romania
- Also spelled
- Sidónia
- US records 1880–2017
- 0 male / 398 female
- Data
- nam_dict (GFDL) + US SSA
- Dataset built
- 2026-09-11
How to address Sidonia
If you do not know Sidonia’s preferred form of address, use a greeting without Mr or Ms: “Dear Sidonia,” in English, “Guten Tag Sidonia,” in German. Include their family name if you know it. The name’s classification describes its usage. Follow the form of address the person uses for themselves.
Ready-made greetings in six languages
English
Dear Sidonia,
German
Guten Tag Sidonia,
French
Bonjour Sidonia,
Spanish
Estimado/a Sidonia:
Chinese
Sidonia您好：
Japanese
Sidonia様
English
Hi Sidonia,
German
Hi Sidonia,
French
Salut Sidonia,
Spanish
Hola Sidonia,
Chinese
Sidonia你好：
Japanese
Sidoniaさん
This is a statistical estimate, not a statement about the gender, identity or correct form of address of any particular person.
Country breakdown
| Country | How common | Usually |
|---|---|---|
| United States | rare | woman's name |
| Portugal | rare | woman's name |
| Romania | rare | woman's name |
| Slovakia | rare | woman's name |
United States birth data
0 male · 398 female · 398 births recorded
Records from 1980–2017: 0% male.
Frequently asked questions
Is Sidonia a male or female name?
Sidonia is classified as a female given name in our dataset. A first name alone does not establish someone’s gender or preferred form of address.
How do I address Sidonia in an email?
If you do not know Sidonia’s preferred form of address, use a greeting without Mr or Ms: “Dear Sidonia,” in English, “Guten Tag Sidonia,” in German. Include their family name if you know it. The name’s classification describes its usage. Follow the form of address the person uses for themselves.
Is Sidonia a unisex name?
Sidonia is classified as generally female in the combined dataset. This does not rule out other uses. Our categories describe the sources, rather than a complete survey of everyone with this name.
Related names
Sources
Gender by country: nam_dict, the c't first-names dictionary by Joerg Michael, roughly 44,000 names across 55 countries, licensed GFDL. US frequencies: United States Social Security Administration baby-name data (1880–2017), public domain. Classifications are not measured accuracy rates. Method: how we classify names. Full dataset: data & licences. US source data (babynames). Dataset built 2026-09-11; this is not a new collection date for the source records.
DearWho, "Is Sidonia a male or female name?", https://www.dearwho.app/name/sidonia. Data: nam_dict (J. Michael, GFDL) and US SSA, built 2026-09-11.
BibTeX
@misc{dearwho_sidonia,
title = {Is Sidonia a male or female name?},
author = {{DearWho}},
year = {2026},
url = {https://www.dearwho.app/name/sidonia},
note = {Data: nam_dict (GFDL), US SSA public domain}
}