| One-named Deco designer | 23 |
| One-named ECW wrestler | 22 |
| One-named fashion designer | 26 |
| One-named fashion illustrator | 29 |
| One-named fictional detective | 29 |
| One-named flamenco guitarist | 28 |
| One-named folk music great | 26 |
| One-named former supermodel | 27 |
| One-named Gaelic folk singer | 28 |
| One-named Gaelic singer | 23 |
| One-named Grammy winner | 23 |
| One-named Greek musician | 24 |
| One-named Greek singer | 22 |
| One-named Irish folk singer | 27 |
| One-named Irish Grammy winner | 29 |
| One-named Irish singer | 22 |
| One-named Italian model | 23 |
| One-named Italian supermodel | 28 |
| One-named jazzy singer | 22 |
| One-named Milanese model | 24 |
| One-named model-turned-actor | 28 |
| One-named model/actress | 23 |
| One-named neo-soul singer | 25 |
| One-named New Age keyboardist | 29 |
| One-named New Age musician | 26 |
| One-named New Age pianist | 25 |
| One-named New Age singer | 24 |
| One-named New Age vocalist | 26 |
| One-named Nigerian singer | 25 |
| One-named Nigerian songstress | 29 |
| One-named Oscar winner | 22 |
| One-named plus-size model | 25 |
| One-named pop superstar | 23 |
| One-named Queen of Tejano | 25 |
| One-named R&B artist | 24 |
| One-named R&B singer | 24 |
| One-named rap star/actress | 26 |
| One-named rapper-turned-actor | 29 |
| One-named rapper/actress | 24 |
| One-named rocker/actor | 22 |
| One-named silkscreen designer | 29 |
| One-named singer from Greece | 28 |
| One-named singer from Nigeria | 29 |
| One-named singer of the 1960s | 29 |
| One-named singer/actress | 24 |
| One-named soccer immortal | 25 |
| One-named soccer legend | 23 |
| One-named Somali model | 22 |
| One-named Somalian model | 24 |
| One-named Somalian supermodel | 29 |
| One-named Spanish entertainer | 29 |
| One-named Spanish singer | 24 |
| One-named sports legend | 23 |
| One-named Swedish pop singer | 28 |
| One-named Swedish songstress | 28 |
| One-named Tejano singer | 23 |
| One-named Tevye portrayer | 25 |
| One-named Vegas headliner | 25 |
| One-named Venetian master | 25 |
| One-named western hero | 22 |
| One-night stand necessity | 25 |
| One-nighters for Jo Anne | 24 |
| One-of-a-kind Dutch cheese? | 27 |
| One-of-a-kind find, to Caesar | 29 |
| One-on-one beneficiary | 22 |
| One-on-one fencing sport | 24 |
| One-on-one gamble, usually | 26 |
| One-on-one Olympic sport | 24 |
| One-on-one with a big shot | 26 |
| One-person opera performances | 29 |
| One-person performance | 22 |
| One-person performances | 23 |
| One-person-business owners | 26 |
| One-piece garment: Var. | 23 |
| One-point baccarat card | 23 |
| One-point cribbage knave | 24 |
| One-point score, of a sort | 26 |
| One-point Scrabble letters | 26 |
| One-point Scrabble piece | 24 |
| One-point Scrabble tiles | 24 |
| One-pointer in horseshoes | 25 |
| One-quadrillionth: Comb. form | 29 |
| One-quarter of quadri- | 22 |
| One-quarter of quarante | 23 |
| One-quintillionth: Prefix | 25 |
| One-room house, typically | 25 |
| One-room schoolhouse features | 29 |
| One-room schoolhouse figure | 27 |
| One-room schoolhouse heater | 27 |
| One-round loser to Muhammad | 27 |
| One-seeded fruit, botanically | 29 |
| One-seeded fruit: Var. | 22 |
| One-seeded fruits: Var. | 23 |
| One-seeded, winged fruit | 24 |
| One-seventh of a rainbow | 24 |
| One-seventh of a semana | 23 |
| One-seventh of una semana | 25 |
| One-sixteenth of a cup: Abbr. | 29 |
| One-sixth of a drachma | 22 |
| One-sixth of a fl. oz. | 22 |