| Name | Distribution.Simple.Command |
| name | Distribution.TestSuite |
| NamedFieldPuns | Language.Haskell.Extension, Distribution.Simple |
| NegativeLiterals | Language.Haskell.Extension, Distribution.Simple |
| NetBSD | Distribution.System |
| Never | Distribution.Simple.Setup |
| NewQualifiedOperators | Language.Haskell.Extension, Distribution.Simple |
| NHC | Distribution.Compiler, Distribution.Simple.Compiler, Distribution.Simple |
| NoAbiTag | Distribution.Compiler, Distribution.Simple.Compiler, Distribution.Simple |
| noArg | Distribution.Simple.Command |
| NoCopyDest | Distribution.Simple.InstallDirs, Distribution.Simple.Setup, Distribution.Simple.LocalBuildInfo |
| noExtraFlags | Distribution.Simple.Command |
| NoFlag | Distribution.Simple.Setup |
| NoGlob | Distribution.Simple.Utils |
| NondecreasingIndentation | Language.Haskell.Extension, Distribution.Simple |
| None | Distribution.Simple.PackageIndex |
| NoOptimisation | Distribution.Simple.Compiler, Distribution.Simple |
| NoParse | Distribution.InstalledPackageInfo |
| noPkgDbStack | Distribution.Simple.Program.HcPkg |
| normal | Distribution.Verbosity |
| normaliseLineEndings | Distribution.Simple.Utils |
| NormalOptimisation | Distribution.Simple.Compiler, Distribution.Simple |
| notice | Distribution.Simple.Utils |
| notThisPackageVersion | Distribution.Package, Distribution.Make, Distribution.Simple |
| notThisVersion | Distribution.Version, Distribution.Simple |
| NoUpperBound | Distribution.Version, Distribution.Simple |
| noVerboseFlag | Distribution.Simple.Program.HcPkg |
| noVersion | Distribution.Version, Distribution.Simple |
| NPlusKPatterns | Language.Haskell.Extension, Distribution.Simple |
| NubList | Distribution.Utils.NubList |
| NubListR | Distribution.Utils.NubList |
| NullaryTypeClasses | Language.Haskell.Extension, Distribution.Simple |
| NumDecimals | Language.Haskell.Extension, Distribution.Simple |
| numericVersion | Distribution.Simple.HaskellSuite |