| Lastname | Firstname | Casefile | Photos | Type of Abuse | Case Status | Other crimes | State | City/Town | County | Province | Country | Date | Next Court Date | Last known address | |
| Zak, Jr. | Michael | shot & killed herons, ospreys & 1 bald eagle on hatchery grounds | Torture | Convicted | MA | Sanderson | Springfield | USA | 5/12/2006 | 6/27/2007 | |||||
| Zales | Connie Givens | Hoarding and neglect of 12 animals | Hoarding | Alleged | FL | Panama City | USA | 06/11/2003 | |||||||
| Zamora | Gerardo | Stoned a dog to death | Torture | Convicted | TX | Harlingen | USA | 09/12/1997 | |||||||
| Zamora | Patrick | Cockfighting | Fighting | Acquitted | CA | Sacramento | USA | 07/26/97 | |||||||
| Zampatti | Roger | dogs left to starve to death, others found dead | Yes | Neglect/Abandonment | Alleged | illegal drugs | CA | Mad River | Trinity | USA | 08/11/06 | 08/21/07 | |||
| Zarate | Fernando Franco | Cockfighting | Fighting | Alleged | OK | Oklahoma City | USA | 01/29/2004 | |||||||
| Zarate | Juan Ausencio | Cockfighting | Fighting | Alleged | OK | Oklahoma City | USA | 01/29/2004 | |||||||
| Zarate | Mary Esther | Cockfighting | Fighting | Alleged | OK | Oklahoma City | USA | 01/29/2004 | |||||||
| Zaterka | Peter | Beat a friend's pit bull | Torture | Alleged | CT | South Windsor | USA | 06/06/2002 | |||||||
| Zavala | Benny | Starved and dissected pet guinea pig | Mutilation/Torture | Convicted | CA | Oxnard | USA | 09/2001 | |||||||
| Zavala-Martinez | Enrique | cut the ears of his nephews dogs | Torture | Convicted | AR | Springdale | Washington | USA | 6/2/2006 | ||||||
| Zawistowski | Katonya | Horse neglect | Neglect/Abandonment | Convicted | WA | Pierce County | USA | 05/2001 | |||||||
| Zawistowski | Vern | Horse neglect | Neglect/Abandonment | Convicted | WA | Pierce County | USA | 05/2001 | |||||||
| Zdan | Karen | Woman Charged with Animal Cruelty | Neglect/Abandonment | Alleged | NY | Worcester | USA | 03/2004 | |||||||
| Zehr, DVM | Daniel Raymond | Veterinarian/Staff Misconduct violations and animal cruelty | Neglect | Dismissed | IN | Munster | Lake | USA | 5/18/1993 | Olla, LA | |||||
| Zielinski | Christopher P. | arson fire killed several pets | Torture | Alleged | MA | Haverhill | USA | 07/00/02 | |||||||
| Zimmerman | Erik Robert | Beating, shooting, skinning and eating a racoon | Yes | Mutilation/Torture | Convicted | GA | Athens | USA | 12/12/2003 | Marble, NC | |||||
| Zobel | William A. | 131 horses seized | Neglect/Abandonment | Convicted | MO | Republic | Greene | USA | 1/8/2005 | ||||||
| Zubik | Robert Allen | 60+ animals neglected, 2 dead | Neglect | Alleged | IN | Lake Station | USA | 5/1/2006 | |||||||
| Zuliani | Marcio | Beat dog with belt over 50 times | Torture | Convicted | CA | San Diego | USA | 03/2001 | |||||||