| Meaning | lion |
| Origin | French, Latin, Roman |
| Gender | Boy |
| Popularity | Moderate |
| Length | 4 |
| Syllables | 2 |
| Syllabification | Ly-on |
Bold and singular, Lyon commands attention through its association with the king of beasts while maintaining refined sophistication. This alternative spelling to the more common Leon offers distinctiveness without sacrificing immediate recognizability. The single syllable delivers strength with efficiency, while the unusual spelling adds visual interest and memorable character. French city connections lend it cosmopolitan appeal and cultural depth beyond its animal associations. The name works beautifully in professional contexts, appearing on business cards and academic credentials with equal authority as in casual settings. It's virtually nickname-proof, which appeals to parents who prefer their chosen name remain intact. The 'y' spelling creates uniqueness in an era where many parents seek distinction for their children without resorting to invented names. Lyon photographs elegantly, looks strong in signatures, and provides no obvious material for teasing—practical considerations that matter. The brevity ensures it pairs well with longer surnames and middle names, offering flexibility in full-name construction.
| Ly |
| Lee |
| Yon |
| Lyonie |
| Lyon Sprague de Camp | American science fiction and fantasy author |
| Lyon Gardiner Tyler | American educator and historian |
| Lyon Mackenzie | Scottish-Canadian rebel leader |
| Lyonel Feininger | German-American painter and photographer |
| Lyon Playfair, 1st Baron Playfair | Scottish chemist and Liberal politician |
| Lyonel Charles Robbins, Baron Robbins | British economist and public servant |
| Lyonel Solomon | English music conductor |
| Lyon Lorenz | American composer |
| Lyon Brown | American politician and judge |
| Lyon Freysinnet | French aviator and inventor |
| Lyon Sprague de Camp II | American naval officer and author |
| Lyon Chaim | Israeli politician |
| Lyon Hemingway | American architect |
| Lyon Gardiner | American politician |
| Lyon Phelps | American architect |
| Lyon Sprague de Camp III | American businessman and author |
| Lyon George Tyler | American academic |
| Lyon Burke | American politician |
| Lyon Williams | American politician |
| Lyonel Baratheon | A character from George R.R. Martin's "A Song of Ice and Fire" series |
| Lyon Vastia | A character from the anime and manga series "Fairy Tail" |
| Lyon Bastia | A character from the manga series "Attack on Titan" |
| Lyon Radley | A character from the TV show "Gossip Girl" |
| Lyon Otterbourg | A character from the movie "The Royal Tenenbaums" |
| Lyonel Dazon | A character from the video game "Final Fantasy XII" |
| Lyon Leverett | A character from the TV show "Westworld" |
| Lyon West | A character from the movie "An American Tail - The Treasure of Manhattan Island" |
| Lyon Spriggan | A character from the video game "Tales of the Abyss" |
| Lyon Rumont | A character from the video game "Fire Emblem - The Sacred Stones" |
| Lyon Baston | A character from the TV show "Blindspot" |