| Acronym | Definition |
|---|
| NCLB➣No Child Left Behind (US education initiative) |
| NCLB➣Northern Corn Leaf Blight |
| NCLB➣National Civil Liberties Bureau (now American Civil Liberties Union) |
| NCLB➣No Community Left Behind (est. 2005; Ottawa, Canada) |
| NCLB➣Non-Contributing Land Base (forestry land designation; Canada) |
| NCLB➣No Code Left Behind (computer code) |
| NCLB➣New Contented Little Baby (book) |
| NCLB➣National Charities Lottery Board (UK) |