NRZ or NRz may refer to:

• National Railways of Zimbabwe
• Non-return-to-zero, an encoding technique.

• Dennis Wilson discography
• Dennis Wilson (poet)
• Dennis Windross
• Dennis Wirgowski
• Dennis Wliszczak
• Dennis Wojtkiewicz
• Dennis Wolf
• Dennis Wolf Bushyhead
• Dennis Woodside
• Dennis Yates Wheatley
• Dennis Young
• Dennis Young (Australian politician)
• Dennis Young (rugby player)
• Dennis Yu (film director)
• Dennis Yu (Film Director)
• Dennis Zanette
• Dennis Şerban
• Dennlys Park
• Denno coil
• Den Norske Kalosje- & Gummivarefabrik
• Den Norske Kalosje- og Gummivarefabrik
• Den norske Naglefabrik
• Den norsk-tyske bikulturelle skole
• Dennosen
• Dennou Boukenki Webdiver