Tiffani Thiessen
There are approximately 1 people named Tiffani Thiessen living in the United States today. That makes this name combination very rare, occurring at a rate of about 1 in 342,754,338 Americans.
This estimate combines SSA birth records for the first name Tiffani with Census Bureau frequency data for the surname Thiessen. Below you will find a breakdown of both names, including popularity trends, gender data, and ancestry information.
Expected bearers
1
1 in 342,754,338
Named Tiffani
14K
Alive today
Named Thiessen
4.1K
Alive today
US population
343M
Denominator
Estimated living: 14K
Rarity: Uncommon
Gender: Female
Peak year: 1981
Average age: 39
Estimated bearers: 4.1K
Rarity: Rare
Census rank: #9,253
Per 100K: 1.19
Top ancestry: White (92.8%)
First name trend
Tiffani: popularity over time
Year-by-year SSA birth registrations for the first name Tiffani. The peak year was 1981 with 643 births. The average person named Tiffani today is 39 years old.
Babies born per year
Ethnicity
Ancestry of the Thiessen surname
Self-reported race and ethnicity breakdown for people with the surname Thiessen, from the 2010 US Census Bureau. The largest group is White at 92.8%.
- White92.8%
- Hispanic or Latino3.8%
- Two or more races1.4%
- Asian and Pacific Islander0.8%
- American Indian and Alaska Native0.7%
- Black or African American0.6%
Methodology
How we calculated this
The first name Tiffani has a living-bearer frequency of 0.0041% of the US population, based on 14,065 estimated living Americans carrying this first name (from SSA birth records going back to 1880, adjusted for mortality using CDC life tables).
The surname Thiessen appears at a rate of 1.19 per 100,000 residents in the 2010 Census Bureau surname file, which translates to a frequency of 0.0012%.
Multiplying these two independent frequencies against the current US population of 342,754,338 gives an expected count of approximately 1 people with the full name Tiffani Thiessen. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
FAQ
Tiffani Thiessen: questions and answers
How many people are named Tiffani Thiessen?
We estimate approximately 1 people in the United States share the full name Tiffani Thiessen. That works out to about 1 in 342,754,338 Americans. This is calculated by combining the first-name frequency (0.0041%) with the surname frequency (1.19 per 100K) against the current US population.
How rare is the name Tiffani Thiessen?
We classify Tiffani Thiessen as "Very Rare". About 1 in 342,754,338 Americans share this exact first and last name combination.
Is Tiffani a male or female name?
Tiffani is predominantly female. Out of 14,911 total SSA registrations, 0.0% were male and 100.0% were female. See the full Tiffani profile for detailed gender data.
Where does this data come from?
First-name data comes from the Social Security Administration's national baby name files (1880 to 2024). Surname data comes from the 2010 US Census Bureau decennial surname tables. Living-bearer estimates use CDC actuarial life tables to adjust for mortality. Read the full methodology.