Kathy went to 34,766 US girls in the 1940s and 22,706 in the 1970s, then vanished: no decade since has put it among the country's 200 most popular girls' names. February 25 is its day.
No founder, establishing act, or formal record of when National Kathy Day began has been identified. It circulates through online holiday listings and social posts, and that circulation is the only documented trace of the observance.
Kathleen, Katherine, Catherine and Kathryn all sit on the Social Security Administration's list of the 100 most popular American girls' names of the past century. Kathy does not. National Kathy Day honors a name that the long view leaves off the page.
It is not the record of a name that failed to catch on. Kathy had a short and intense run, and it has not appeared in SSA's 200 most popular girls' names in any decade since the 1970s.
What survives is the day, and it is a modest thing. In February 2024 a volunteer litter-cleanup crew in Elk Grove, California pasted the standard paragraph about the name into a Facebook post. Then it added a line of its own about one of its members, a woman it called a joy to be around.
Every Kathy on an American birth certificate descends from a Greek name, Aikaterine, that reached Western Europe as cargo of the Crusades. The saint who carried it was venerated first in Syria. Returning crusaders brought the name home with them.
It took hold in England from the 12th century, in a scatter of spellings that took centuries to settle. Katherine and Catherine became the two standard forms only in the later Middle Ages.
The root kept branching wherever it landed. Irish speakers made Caitlin, which English anglicised as Kathleen. Danish produced Karen, a form the Online Etymology Dictionary records as rare before 1928.
For six decades of American record-keeping, Kathy is simply not there. It appears in none of the Social Security Administration's decade rankings from the 1880s through the 1930s. It enters in the 1940s at rank 88.
One decade later it had passed both of the long forms. In the 1950s Kathy ranked 22nd among American girls, against Catherine at 32nd and Katherine at 65th.
The retreat took longer than the climb. Kathy slipped to 134th in the 1970s and has not returned to the list since.
The observance is a far younger and thinner thing than the name it honors. No founder, establishing act, or reason for the February date appears in any primary record. That leaves the day resting on the name, which is the part that can be documented.
WHY THIS DAY MATTERS
Different spellings of similar names are not combined.
The Social Security Administration builds its rankings from the first-name field of Social Security card applications, and it never combines different spellings of similar names. The Kathys it counted were registered as Kathy, not as Katherines who answered to it.
SSA's own illustration of the never-merge rule is a cluster of Katherine spellings, running from Caitlin through Katelynn. Each one is treated as a separate name and carries its own rank.
Seven names that all descend from Aikaterine appear as separate entries in the 1950s rankings, and every one of them sits inside the top 65. Karen, Kathleen, Kathy, Catherine, Cathy, Kathryn and Katherine were counted as seven different names.
BY THE NUMBERS
TIMELINE
MYTH VS FACT
The name Kathy means "pure".
The link to the Greek word katharos, meaning pure, is a later association rather than the name's origin. The Online Etymology Dictionary calls it probably folk etymology and dates the inserted h to the 16th century, while Behind the Name lists four competing derivations for the original Greek Aikaterine.
Saint Catherine of Alexandria is a documented historical figure.
Britannica records that she is not mentioned before the 9th century and that her historicity is doubtful. Behind the Name describes her as semi-legendary.
GET INVOLVED
EDITOR'S PICK
READ
ADD
NOTE
ASK
Test your knowledge
No. It is an unofficial observance and a normal working day, and no United States presidential proclamation naming a Kathy Day appears in the Federal Register.
COLOPHON
Across 146 years of American birth records, Kathryn was never once the most common spelling of its own name; it held second place for 23 unbroken years. July 8 is the day for a spelling that did not have to win.
The saint behind the name was struck from the Roman calendar in 1969 for want of authentic biographical material, and put back in 2002. The 2 December observance keeps the name either way.
Karen got there first: Merriam-Webster files the insult as based on the given name, not the other way round. June 8 is the name's day, and a survey of 681 bearers found more than three quarters reported being laughed at.
