Saint Louis vs St Louis
If you have ever typed the name of the famous Missouri city into a search engine, you have probably noticed that people cannot seem to agree on how to spell it. Some write "Saint Louis", others insist on "St Louis", and a fair few add a full stop to make it "St. Louis". So which one is correct? The short answer is that all of them are, depending on the context. The longer answer, however, reveals a fascinating story about language, history and the way place names evolve over time.
The Historical Roots of the Name
The city takes its name from Louis IX of France, the thirteenth-century monarch who was canonised by the Catholic Church and is venerated as Saint Louis. When French fur traders Pierre Laclede and Auguste Chouteau founded the settlement in 1764, they named it in honour of the crusading king. Because the name literally refers to a canonised saint, writing it out in full as "Saint Louis" is arguably the most historically faithful option. Indeed, formal institutions tend to favour the full spelling, which is why you will see "Saint Louis University" and "the Saint Louis Art Museum" using the complete word rather than the abbreviation.
Why "St Louis" Became the Everyday Standard
Despite the formal origins, the abbreviated "St Louis" has become the dominant form in everyday writing, journalism and signage. Publications such as the Associated Press and most American newspapers use "St." with a full stop, following their style guides for abbreviations. British publications, meanwhile, typically drop the full stop to write "St Louis", in keeping with conventions that avoid punctuation in contractions where the last letter of the abbreviation matches the last letter of the full word. Neither approach is wrong; they simply reflect different editorial traditions on either side of the Atlantic.
Context Matters: When to Use Each Version
The key to choosing the right spelling lies in understanding your audience and purpose. If you are writing formally, quoting an official institution or referencing the historical figure, "Saint Louis" is the safer choice. If you are writing informally or following journalistic conventions, "St Louis" works perfectly well. You should also be careful not to confuse the independent city of St Louis with St Louis County, which surrounds it but is governed separately — a distinction that confuses visitors and locals alike.
Consistency Is the Real Winner
Ultimately, the debate between "Saint Louis" and "St Louis" is less about correctness and more about consistency. Whichever form you choose, stick with it throughout your document, and be aware of the style guide you are expected to follow. The city itself answers to both names, and its residents are far more likely to quibble about the best barbecue or baseball team than about an abbreviation. So write with confidence, spell it your way, and let the Gateway Arch stand tall regardless of how you shorten the name of the saint it honours.