NIBS may refer to:
- National Institute of Building Sciences
- NIBS (bus company), British bus company
- Cacao nibs, pieces of roasted cocoa beans, generally ground into powder, but also inserted into chocolate bars to give additional "crunch"
- Nibs, one of the Lost Boys in the Peter Pan universe named after the actor who portrayed the character, Ryan 'Nibs' Billing
- A miniature variety of Twizzlers candy.