| Abbreviation | Definition |
|---|---|
| JW | Jordan Williams |
| JW | Joseph Winston |
| JWB | John Wayne Bobbitt |
| JWB | Johnny Walker Black |
| JWD | John W. Douglass |
| JWEB | John Wesley Edward Bowen (1855-1933) |
| JWG | John Wayne Gacy |
| JWJ | James Weldon Johnson |
| JWM | J. W. Marriott |
| JWN | John W. North |
| JWY | James Webb Young, Advertising Man |
| JWY | John Wesley Young |
| JYJ | Jaejoong Yoochun Junsu |
| JYP | Jin-Young Park, singer |
| JZ | Jacob Ziv |
| KA | Kofi Annen |
| KAM | Khalid A. Mughal, programming book author |
| KAM | Kylie Ann Minogue |
| KAQ | Karen Ann Quinlan |
| KB | Kate Barlow |