Willy traces its origin to the Old High German wil (“will” or “desire”) and helm (“helmet”), originally serving as the familiar diminutive of William and literally conveying the sense of a resolute protector. Pronounced WIL-ee in English, this once-spontaneous nickname has gradually established itself as an independent name in Anglo-American usage, prized for its approachable simplicity and unassuming confidence. While it has never claimed the summit of popularity charts, Willy has sustained a modest but steady presence in U.S. birth rankings—hovering around the 900th position in recent years—testifying to its quietly enduring appeal.
| Willy Brandt was a West German chancellor who won the 1971 Nobel Peace Prize for promoting European cooperation and reconciliation. |
| Willy Mutunga is a Kenyan lawyer and reform activist who served as Chief Justice of Kenya and Commonwealth Special Envoy to the Maldives. |
| Willy Ley was a German-American science writer and space exploration advocate honored with a crater on the Moon. |
| Willy Ronis was a French photographer known for capturing everyday life in postwar Paris and Provence. |
| Willy Russell - William Russell is an English playwright, lyricist and composer best known for Educating Rita, Shirley Valentine, Blood Brothers and Our Day Out. |
| Willy Vlautin is an American novelist, musician and songwriter known for his novels and work with Richmond Fontaine and The Delines. |
| Willy Paul - Wilson Abubakar Radido is a Kenyan artist and songwriter from Nairobi who founded and leads Saldido International Entertainment. |
| Willy Chirino is a Cuban singer, songwriter, musician and record producer. |
| Willy Alberti, born Carel Verbrugge, was a Dutch singer known for singing in Dutch and Italian, as well as an actor and broadcaster. |
| Willy Semedo is a French-born professional footballer who plays as a winger for United FC and the Cape Verde national team. |
| Willy Huber was a Swiss goalkeeper who played in two World Cups and was named Switzerland's Goalkeeper of the Year three times. |
| Willy Rey was a Dutch-Canadian model known as Playboy's Playmate of the Month for February 1971. |
| Willy Holtzman is an award-winning American playwright and screenwriter known for bringing historical events to life on stage. |