Guides to US Name Data

• How Many People Have My Name in the World? No one counts names worldwide, but US records can. See how many people have your first name, how many first names exist, and Census counts for last names.
• How to Check If Your Name Is Truly Unique Find out how unique your name really is in five steps: people alive with it, 1 in how many, its trend, its spellings and your last name, with real examples.
• Names That Exist Only a Few Times in US Records 14,881 first names appear only once in 146 years of US baby name records. See how rare names get, the newest one-time names, and names that have vanished.
• How Many People Have the Same Name as Celebrities? About 2,500 people in the US share the name Michael Jordan. See rough estimates for famous names, and how stars and TV characters changed baby name trends.

Data pages: Look up a first name · Browse names · Most common names

• How Many People Have Your Surname? See how many people in the US share your last name, from Census Bureau counts of 162,253 surnames: the most common, how rare yours is, and how to look it up.
• Most Unique Last Names in America The rarest last names in America, from Census counts of surnames shared by 100 or more people: the rarest listed, new since 2000, the longest and shortest.
• How Many People Share Your Full Name? No record counts full names, but you can estimate yours from first and last name data. See the method, worked examples like Michael Smith, and its limits.
• The Difference Between First Name & Surname Popularity Half of the people counted share one of 254 first names, but surnames take 2,116 to cover half. See how first and last names differ and which names are both.

Data pages: Most common last names · Full-name estimate · Hispanic last names

• What Makes a Name Rare or Common? Just 254 first names cover half of all people in the US. See the five rarity tiers and what the records show about why some names stay rare and others spread.
• Rarest Baby Names Ever Recorded 14,881 names were given to just 5 US babies in one year and never again. See the rarest names by decade, names rare for a century, and well-known rare names.
• Longest First Names Ever Recorded The longest first names in US baby name records are 15 letters, the most the records hold. See them, the longest names in real use, and how long most names are.
• Shortest Popular Names in History Amy was the #2 girls' name in 1973, the best any three-letter name has done. See the most common two- and three-letter names and how short names are returning.

Data pages: Rare names parents choose now · Vintage girl names · Vintage boy names

• How Name Popularity Changes Over Time Jennifer went from 63,600 girls in 1972 to 501 in 2025. See the shapes name popularity takes in 146 years of SSA records: peaks, fads, steady names, comebacks.
• Most Popular Names by Decade (1950 to 2025) James led the 1950s, Michael the next four decades and Liam the 2020s. See the top 5 girls' and boys' names of every decade from 1950 to 2025, from SSA records.
• Old-Fashioned Names Making a Comeback Hazel fell from #18 to #1,333 and is back at #21. See 30 old names that returned to the top 100 in 2025, from Social Security records, and who has them now.
• Millennial Names That Are Disappearing About 42,693 girls a year were named Jessica from 1981 to 1996; 424 were in 2025. See the Millennial names falling fastest and how many people still have them.
• Most Popular Gen Z Names Emily and Jacob were the top Gen Z names, 1997 to 2012. See the top 10, the names that arrived with Gen Z, like Nevaeh and Aiden, and where they rank now.
• The Most Overused Baby Names Right Now Liam was given to 1 in 82 boys born in 2025 and Olivia to 1 in 119 girls. See the most given names, spellings that add up, and the names growing fastest.
• Names That Changed Gender Popularity Over Time Ashley went from 2% girls in the 1930s to 100% in the 1990s. See the 30 names that switched from boys to girls in SSA records and the 3 that went the other way.

Data pages: Baby names of 2025 · Fastest-rising names · Names of the 2020s

• Most Common Male Names in the USA Michael is the most common male name in the US, with about 3.6 million people alive. See the top 20 male names today, the most popular ever and the 2025 list.
• Most Common Female Names in the USA Mary is the most common female name in the US, with about 1.72 million people alive. See the top 20 female names today, every #1 since 1880 and the 2025 list.
• Gender-Neutral Names That Are Trending Parker was the top gender-neutral name of 2025, 42% girls. See every name given to 1,000+ babies with a near-even split, how the share grew and what tipped.

Data pages: Girl names · Boy names · Gender-neutral names

• Most Popular Names in California Olivia edged out Mia as the top girls' name in California in 2025, and Liam led the boys. See the top 10, names given more often there and the #1s by decade.
• Most Popular Names in Texas Emma and Liam were the top baby names in Texas in 2025. See the Texas top 10, the names given far more often in Texas and the #1 names by decade since 1910.
• How Name Trends Spread Across States Liam reached the top 100 in five states in 1995 and in Mississippi in 2011. See how seven names spread state by state, and the #1 names in every state in 2025.
• Most Popular Biblical Baby Names Michael and Mary are the most common Biblical names in the US, but the share of babies given one fell from 20.8% in 1975 to 11.8% in 2025. See who's rising.
• The Most Common Arabic Names Layla is the most common Arabic name in the US, with about 128,254 people alive. See the top 20, the many spellings of Muhammad and the names rising fastest.

Data pages: Names by state · California · Texas