At the bottom of an old tailor’s business card, right after the name and street address, sits "Cleveland, O." One letter for the whole state. It looks like a printer’s flourish until you start noticing it everywhere.
A Single Letter in the Postal Record
The U.S. Postal Service’s historical table lists "O." for Ohio as early as 1831—the only single-letter state abbreviation in the entire column. Long before two-letter postal codes, Ohio had found a remarkably economical way to introduce itself.
That does not mean everyone was ordered to use it. The Post Office generally preferred state names written out in full to avoid sorting confusion. Even so, "O." appears across more than a century of Cleveland print: a compact local convention with serious staying power.
A Habit That Outlasted the Rules
Official postal lists recorded "Ohio" in 1874 and again in 1943, yet the one-letter form refused to leave local type cases. A change in the federal stylebook did not mean every Cleveland printer threw out a good habit.
Charles Whittlesey’s 1867 Early History of Cleveland, Ohio is cataloged with "Cleveland, O." on its title page. The Library of Congress records the exact same form for Enakopravnost, Cleveland’s Slovenian daily newspaper published from 1918 to 1957. The single letter had a long working life.
On the archival card that inspired our Cleveland O Tailor Cap, the abbreviation completes an ornate line of 19th-century calligraphy: Geo. W. Auer, Tailor, 635–637 Lorain St., Cleveland, O. An ordinary piece of West Side business stationery still offers a small lesson in how the city signed its name.
Two Letters for the ZIP Code Era
The five-digit ZIP Code arrived in July 1963. After a brief experiment with longer state abbreviations, the Post Office standardized two-letter codes that October so the city, state, and ZIP Code could share a single bottom line. Ohio officially became "OH"—though plenty of old signage and stationery kept the single letter around a while longer.
Wearing the Record
The Cleveland O Tailor Cap carries forward Geo. W. Auer’s lettering and that economical sign-off. The appeal is in the second look: a familiar city name written in a way that makes people pause. Once you recognize "Cleveland, O.," old envelopes, cornerstones, and title pages become a little more interesting.
The lettering that started this story.
See the Cleveland O Tailor Cap, inspired by a vintage Cleveland tailor’s business card.
Quick Reference: Cleveland & Ohio Abbreviations
What does “Cleveland, O.” mean?
“Cleveland, O.” means Cleveland, Ohio. The “O.” is a historical abbreviation for Ohio, rather than an abbreviation of the city’s name. Ohio’s modern two-letter postal abbreviation is “OH.”
What is the abbreviation for Cleveland?
CLE is a common modern shorthand for Cleveland, drawn from the airport code for Cleveland Hopkins International Airport. It is different from the historical “Cleveland, O.”: there, the O. stands for Ohio. OH is Ohio’s modern two-letter postal abbreviation.
| Form | Meaning |
|---|---|
| CLE | Cleveland shorthand and the airport code for Cleveland Hopkins. |
| Cleveland, O. | Historical form of Cleveland, Ohio; O. abbreviates the state. |
| Cleveland, OH | Cleveland followed by Ohio’s modern postal abbreviation. |
The Encyclopedia of Cleveland History traces CLE’s use in local culture. Cleveland Hopkins uses CLE for the airport; the USPS historical table records Ohio’s changing postal forms.
Down the Rabbit Hole
Compare Ohio’s entries in the USPS historical abbreviation table, then inspect the Library of Congress records for Whittlesey’s Early History of Cleveland and Enakopravnost. For more lettering lifted from an everyday Cleveland object, read From Cast Iron to Canvas: Firing Up the Ohio Stove Cap.