In the world, 延 (延 
) is a common unisex first name. The given name 延 is habitual in Eastern Asia, particularly China, where it is quite a rare unisex name. Likewise, 延 is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| 延 | China |
Džons, Erwann, Evan, Gian, Gianni, Giannis, Giovan, Giovanni, Giuàn, Hannes, Hanns, Hans, Honsa, Honza, Huans, Ian, Ianka, Ieuan, Ifan, Ioan, Ioann, Ioannes, Ioannis, Ion, Ivan, Ivano, Ivans, Ivashka, Ivo, Iván, Iwan, Iwo, Jaan, Jack, Jan, Janka, Janos, Jean, Jehan, Jhoao, Joan, Joannes, Joao, Jogvan, Johan, Johann, Johannes, Johannès, Johano, John,
延 is also a prevalent name for the fictitious and mythical characters: Jan Bronski , the fictional character from The Tin Drum by Günter Grass; General Dodonna , the character in the Star Wars universe, Star Wars: Episode IV – A New Hope; Element Lad , the DC Comics character, Legion of Super Heroes; Onufry Zagłoba , the fictional character, With Fire and Sword and Jan Skrzetuski , the fictional character, With Fire and Sword, and in many other works.