CNCF may refer to:

• Christina Noble Children's Foundation
• Cloud Native Computing Foundation, a Linux Foundation project
• Concarril, Mexican rail car manufacturer

• ISTEP+
• I Step through Moscow
• Isterband
• Isterberg
• Is that a gun in your pocket, or are you just happy to see me?
• Is That All There Is
• Is That All There Is?
• Is That a Riot?
• Is That A Riot? (album)
• Is That Enough
• Is That What People Do?
• Is That What Sex is Like?
• Is That What Sex is Like? (EP)
• Is the By
• I's The B'y
• Is the Genius Girl a Youma? Terror's Brainwashing Cram School
• Is the glass half empty or half full
• Is the Pope Catholic
• Is the Pope Catholic?
• Is There a Doctor in the Mouse?
• Is There Anybody Out There
• Is There Anybody out There? The Wall Live 1980-81
• Is There Anything About?
• Is There a Santa Claus
• Is There a Santa Claus?