| Zhora | Afrikian | BK Ringen | Man | 2012 | 60 |
| Zhovlonbek | Yuldashev | Haninge BK | Man | 2004 | 64 |
| Zidan | Othman | BK Stöten | Man | 2002 | 71 |
| Ziggy | Henry | Sevenoaks boxing club | Man | 2006 | 75 |
| Zion | Da Silva | Bålsta BK | Man | 2006 | 75 |
| Zion | Martina | Boxing Team ABOV | Man | 2003 | 75 |
| Zion | Hansen | Halmstad BS | Man | 2013 | 57 |
| Zoe | Hefford | London Community Boxing | Kvinna | 1986 | |
| Zoe | Nilsson | Sundsvalls BK | Kvinna | 2014 | 43 |
| Zoe | Vogels | Knockout Boxing Club | Kvinna | 2009 | 63 |
| Zoë | Hefford | London Community Boxing | Kvinna | 1986 | 60 |
| Zoheir Nabil | El Masri | El Masri Olympic Boxing Club | Man | 1999 | 80 |
| Zoher | Malak | Örebro BK | Man | 2001 | 80 |
| Zsigo | Csaba | Strong Hand Boxing Team | Man | 2005 | 51 |
| Zsofia | Nagy | Ungern | Kvinna | 2008 | 52 |
| Zsolt | Német | Ungern | Man | 2005 | 80 |
| Zubair | Nikbin | Skövde BC | Man | 1990 | 75 |
| Zurab | Maghlapdidze | ATF Gym IF | Man | 2002 | 71 |