Index - N
| Nat | Base, Universum |
| natVal | Base, Universum |
| negate | Base, Universum |
| newChan | Universum |
| newEmptyMVar | Universum |
| newMVar | Universum |
| newQSem | Universum |
| newQSemN | Universum |
| NFData | Universum |
| NonEmpty | Universum |
| nonEmpty | Universum |
| NontrivialContainer | Containers, Universum |
| not | Universum |
| notANumber | Base, Universum |
| note | Exceptions, Universum |
| Nothing | Universum |
| NotImplemented | |
| 1 (Type/Class) | Debug, Universum |
| 2 (Data Constructor) | Debug, Universum |
| notImplemented | Debug, Universum |
| null | Containers, Universum |
| Num | Base, Universum |
| numerator | Base, Universum |
| numericEnumFrom | Base, Universum |
| numericEnumFromThen | Base, Universum |
| numericEnumFromThenTo | Base, Universum |
| numericEnumFromTo | Base, Universum |