| CHARLESLINDBERGH | First and youngest (1927) |
| MARTINAHINGIS | Swiss tennis player who was the youngest ever Grand Slam champion and youngest ever world number one |
| KYLIE | ___ Jenner, cosmetics tycoon and youngest of 9A and 60A's children (5) |
| RUDOLPH | Ninth and youngest of Snow!" and "Blue Santa Claus's traditional reindeer, created by US retailer Robert L. May in 1939 (7) |
| AISHA | Mohammed's third and youngest wife |
| GRYLLS | Adventurer, survivalist and youngest-ever Chief Scout well known as the host of television series in |
| HENRYI | The fourth and youngest son of William the Conqueror (5,1) |
| LUTHERKING | Civil rights activist and youngest person to be awarded the Nobel Peace Prize, Martin ..., Jr (6,4) |
| GLOUCESTER | Duke of -; title of Henry IV's fourth and youngest son Humphrey (10) |
| ADELA | ____ Pankhurst, suffragette, hunger striker and youngest daughter of Emmeline (5) |
| AURIC | Georges, French composer and youngest member of Les Six (5) |
| MICHAELVANGERWEN | Dutch darts player and youngest (aged 24) winner of the PDC World Championship |
| YAMAL | Lamine, Spanish winger and youngest player to appear at the 2024 Euros (5) |
| BRADLUCAS | Fish O'Mania champion 2025 and youngest-ever winner (*dub rascal) (4,5) |
| NGAURUHOE | At about 7000 years, which volcano is the largest and youngest of the Tongariro cones? (9) |
| JANET | Tenth and youngest child in the musical Jackson family |
| MALALA | ___ Yousafzai (education activist and youngest 37-Across laureate) |
| ESPERANTO | Between the eldest, first, and the youngest, second, parents struggling to find a common language (9 |
| LYDIA | The youngest child of Mr and Mrs Bennet in Pride And Prejudice (5) |
| ZEPPO | Youngest (and alphabetically last) of the Marx Brothers |
