KDNZ may refer to:

• KDNZ (FM), a radio station (97.3 FM) licensed to serve Pecos, Texas, United States
• KCFI, a radio station (1250 AM) licensed to serve Cedar Falls, Iowa, United States, which held the call sign KDNZ from 2004 to 2012
• KCNZ (AM), a radio station (1650 AM) licensed to serve Cedar Falls, Iowa, which held the call sign KDNZ from 1998 to 2004

• Lesser knapweed flower weevil
• Lesser Knapweed Flower Weevil
• Lesser large-footed Bat
• Lesser lenten seasons
• Lesser Litanies
• Lesser Lule River
• Lesser Mackellar Island
• Lesser Magic
• Lesser Marbled Fritillary
• Lesser Masked-owl
• Lesser Masked-weaver
• Lesser Meadow-rue
• Lesser Megalapteryx
• Lesser megalapteryx
• Les Serments indiscrets
• Lesser Mime
• Lesser Moon Rat
• Lesser moray
• Lesser moray eel
• Lesser Mountain Ringlet
• Lesser mouse-deer
• Lesser Mouse Lemur
• Lesser Native Cutworm
• Lesser Officers of the Realm
• Lesser of Three Evils