diff --git a/src/app/FakeLib/DotCover.fs b/src/app/FakeLib/DotCover.fs
index d22bfe4a03f..5a94ae9874a 100644
--- a/src/app/FakeLib/DotCover.fs
+++ b/src/app/FakeLib/DotCover.fs
@@ -6,6 +6,7 @@ open System
 open System.IO
 open System.Text
 open Fake.Testing.XUnit2
+open Fake.Testing.NUnit3
 open Fake.MSTest
 
 type DotCoverReportType = 
@@ -194,6 +195,36 @@ let DotCoverNUnit (setDotCoverParams: DotCoverParams -> DotCoverParams) (setNUni
 
     traceEndTask "DotCoverNUnit" details
 
+/// Runs the dotCover "cover" command against the NUnit test runner.
+/// ## Parameters
+///
+///  - `setDotCoverParams` - Function used to overwrite the dotCover report default parameters.
+///  - `setNUnitParams` - Function used to overwrite the NUnit default parameters.
+///
+/// ## Sample
+///
+///     !! (buildDir @@ buildMode @@ "/*.Unit.Tests.dll") 
+///         |> DotCoverNUnit 
+///             (fun dotCoverOptions -> { dotCoverOptions with 
+///                     Output = artifactsDir @@ "NUnitDotCoverSnapshot.dcvr" }) 
+///             (fun nUnitOptions -> { nUnitOptions with
+///                     DisableShadowCopy = true })
+let DotCoverNUnit3 (setDotCoverParams: DotCoverParams -> DotCoverParams) (setNUnitParams: NUnit3Params -> NUnit3Params) (assemblies: string seq) =
+    let assemblies = assemblies |> Seq.toArray
+    let details =  assemblies |> separated ", "
+    traceStartTask "DotCoverNUnit" details
+
+    let parameters = NUnit3Defaults |> setNUnitParams
+    let args = buildNUnit3Args parameters assemblies
+    
+    DotCover (fun p ->
+                  {p with
+                     TargetExecutable = parameters.ToolPath
+                     TargetArguments = args
+                  } |> setDotCoverParams)
+
+    traceEndTask "DotCoverNUnit" details
+
 /// Runs the dotCover "cover" command against the XUnit2 test runner.
 /// ## Parameters
 ///
diff --git a/src/app/FakeLib/FakeLib.fsproj b/src/app/FakeLib/FakeLib.fsproj
index 62ad2572b02..22aae55fba6 100644
--- a/src/app/FakeLib/FakeLib.fsproj
+++ b/src/app/FakeLib/FakeLib.fsproj
@@ -68,6 +68,7 @@
     <Compile Include="UnitTest\NUnit\Common.fs" />
     <Compile Include="UnitTest\NUnit\Sequential.fs" />
     <Compile Include="UnitTest\NUnit\Parallel.fs" />
+    <Compile Include="UnitTest\NUnit\NUnit3.fs" />
     <Compile Include="UnitTest\XUnit\XUnit.fs" />
     <Compile Include="UnitTest\XUnit\XUnitHelper.fs" />
     <Compile Include="UnitTest\XUnit\XUnit2.fs" />
diff --git a/src/app/FakeLib/UnitTest/NUnit/Common.fs b/src/app/FakeLib/UnitTest/NUnit/Common.fs
index da6eba0b277..2186d602b35 100644
--- a/src/app/FakeLib/UnitTest/NUnit/Common.fs
+++ b/src/app/FakeLib/UnitTest/NUnit/Common.fs
@@ -104,11 +104,11 @@ type NUnitParams =
 /// ## Defaults
 /// - `IncludeCategory` - `""`
 /// - `ExcludeCategory` - `""`
-/// - `ToolPath` - `""`
+/// - `ToolPath` - The `nunit-console.exe` path if it exists in a subdirectory of the current directory.
 /// - `ToolName` - `"nunit-console.exe"`
 /// - `DontTestInNewThread`- `false`
 /// - `StopOnError` - `false`
-/// - `OutputFile` - The `nunit-console.exe` path if it exists in a subdirectory of the current directory.
+/// - `OutputFile` - `"TestResult.xml"`
 /// - `Out` - `""`
 /// - `ErrorOutputFile` - `""`
 /// - `WorkingDir` - `""`
diff --git a/src/app/FakeLib/UnitTest/NUnit/NUnit3.fs b/src/app/FakeLib/UnitTest/NUnit/NUnit3.fs
new file mode 100644
index 00000000000..2792db8054e
--- /dev/null
+++ b/src/app/FakeLib/UnitTest/NUnit/NUnit3.fs
@@ -0,0 +1,280 @@
+[<AutoOpen>]
+module Fake.Testing.NUnit3
+
+open System
+open System.Text
+open System.IO
+open Fake
+
+/// Process model for NUnit 3 to use.
+type NUnit3ProcessModel = 
+    | DefaultProcessModel
+    | SingleProcessModel
+    | SeparateProcessModel
+    | MultipleProcessModel with 
+    member x.ParamString =
+        match x with
+        | DefaultProcessModel -> ""
+        | SingleProcessModel -> "Single"
+        | SeparateProcessModel -> "Separate" 
+        | MultipleProcessModel -> "Multiple"
+/// The --domain option controls of the creation of AppDomains for running tests. See [NUnit-Console Command Line Options](http://www.nunit.org/index.php?p=consoleCommandLine&r=2.6.4)
+type NUnit3DomainModel = 
+    /// The default is to use multiple domains if multiple assemblies are listed on the command line. Otherwise a single domain is used.
+    | DefaultDomainModel
+    /// No domain is created - the tests are run in the primary domain. This normally requires copying the NUnit assemblies into the same directory as your tests.
+    | NoDomainModel
+    /// A test domain is created - this is how NUnit worked prior to version 2.4
+    | SingleDomainModel
+    /// A separate test domain is created for each assembly
+    | MultipleDomainModel with
+    member x.ParamString =
+        match x with
+        | DefaultDomainModel -> ""
+        | NoDomainModel -> "None"
+        | SingleDomainModel -> "Single"
+        | MultipleDomainModel -> "Multiple"
+
+/// The --framework option in running NUnit 3. There are three kinds - VXY, which means either .NET framework or Mono, NetXY (use .NET framework with given version)
+/// and MonoXY (Mono framework with given version). You can use Net or Mono to let NUnit select the version.
+/// You can pass any value using Other. 
+type NUnit3Runtime =
+    /// Uses the runtime under which the assembly was built.
+    | Default
+    | V20
+    | V30
+    | V35
+    | V40
+    | V45
+    /// NUnit should use .NET framework but can select it's version
+    | Net
+    | Net20
+    | Net30
+    | Net35
+    | Net40
+    | Net45
+    /// NUnit should use Mono framework but can select it's version
+    | Mono
+    | Mono20
+    | Mono30
+    | Mono35
+    | Mono40
+    /// NUnit should use runtime specified by this value
+    | Other of string with
+    member x.ParamString =
+        match x with
+        | Default -> ""
+        | V20 -> "v2.0"
+        | V30 -> "v3.0"
+        | V35 -> "v3.5"
+        | V40 -> "v4.0"
+        | V45 -> "v4.5"
+        | Net -> "net"
+        | Net20 -> "net-2.0"
+        | Net30 -> "net-3.0"
+        | Net35 -> "net-3.5"
+        | Net40 -> "net-4.0"
+        | Net45 -> "net-4.5"
+        | Mono20 -> "mono-2.0"
+        | Mono30 -> "mono-3.0"
+        | Mono35 -> "mono-3.5"
+        | Mono40 -> "mono-4.0"
+        | Other(name) -> name
+        
+/// Option which allows to specify if a NUnit error should break the build.
+type NUnit3ErrorLevel = TestRunnerErrorLevel
+
+/// The NUnit 3 Console Parameters type. FAKE will use [NUnit3Defaults](fake-testing-nunit3.html) for values not provided.
+///
+/// For reference, see: [NUnit3 command line options](https://github.com/nunit/nunit/wiki/Console-Command-Line)
+type NUnit3Params =
+    { /// The path to the NUnit3 console runner: `nunit3-console.exe`
+      ToolPath : string
+
+      /// The name (or path) of a file containing a list of tests to run or explore, one per line.
+      Testlist : string
+
+      /// An expression indicating which tests to run. It may specify test names, classes, methods, 
+      /// catgories or properties comparing them to actual values with the operators ==, !=, =~ and !~. 
+      /// See [NUnit documentation](https://github.com/nunit/nunit/wiki/Test-Selection-Language) for a full description of the syntax.
+      Where : string
+
+      /// Name of a project configuration to load (e.g.: Debug)
+      Config : string
+
+      /// Controls how NUnit loads tests in processes. See [NUnit3ProcessModel](fake-testing-nunit3-nunit3processmodel.html)
+      ProcessModel : NUnit3ProcessModel
+
+      /// Number of agents that may be allowed to run simultaneously assuming you are not running inprocess.
+      /// If not specified, all agent processes run tests at the same time, whatever the number of assemblies.
+      /// This setting is used to control running your assemblies in parallel.
+      Agents : int option
+
+      /// Controls how NUnit loads tests in processes. See: [NUnit3ProcessModel](fake-testing-nunit3-nunit3domainmodel.html).
+      Domain : NUnit3DomainModel
+      
+      /// Allows you to specify the version of the runtime to be used in executing tests.
+      /// Default value is runtime under which the assembly was built. See: [NUnit3Runtime](fake-testing-nunit3-nunit3runtime.html).
+      Framework : NUnit3Runtime
+
+      /// Run tests in a 32-bit process on 64-bit systems.
+      Force32bit : bool
+
+      /// Dispose each test runner after it has finished running its tests
+      DisposeRunners : bool
+
+      /// The default timeout to be used for test cases. If any test exceeds the timeout value, it is cancelled and reported as an error.
+      TimeOut : TimeSpan
+
+      /// Set the random seed used to generate test cases
+      Seed : int
+
+      /// Specify the NUMBER of worker threads to be used in running tests.
+      /// This setting is used to control running your tests in parallel and is used in conjunction with the Parallelizable Attribute.
+      /// If not specified, workers defaults to the number of processors on the machine, or 2, whichever is greater.
+      Workers : int option
+
+      /// Causes execution of the test run to terminate immediately on the first test failure or error.
+      StopOnError : bool
+
+      /// Path of the directory to use for output files.
+      WorkingDir : string
+
+      /// File path to contain text output from the tests.
+      OutputDir : string
+
+      /// File path to contain error output from the tests.
+      ErrorDir : string
+
+      /// Output specs for saving the test results. Default value is TestResult.xml
+      /// Passing empty list does not save any result (--noresult option in nunit)
+      /// For more information, see: [NUnit3 command line options](https://github.com/nunit/nunit/wiki/Console-Command-Line)
+      ResultSpecs : string list
+
+      /// Tells .NET to copy loaded assemblies to the shadowcopy directory.
+      ShadowCopy : bool
+
+      /// Turns on use of TeamCity service messages.
+      TeamCity : bool
+
+      /// Default: [TestRunnerErrorLevel](fake-unittestcommon-testrunnererrorlevel.html).Error
+      ErrorLevel : NUnit3ErrorLevel
+    }
+
+/// The [NUnit3Params](fake-testing-nunit3-nunit3params.html) default parameters.
+///
+/// - `ToolPath` - The `nunit-console.exe` path if it exists in a subdirectory of the current directory.
+/// - `Testlist` - `""`
+/// - `Where` - `""`
+/// - `Config` - `""`
+/// - `ProcessModel` - `DefaultProcessModel`
+/// - `Agents` - `None` 
+/// - `Domain` - `DefaultDomainModel`
+/// - `Framework` - `""`
+/// - `Force32bit` - `false`
+/// - `DisposeRunners` - `false`
+/// - `Timeout` - `2147483647 milliseconds`
+/// - `Seed` - `-1` (negative seed is ignored by NUnit and is not sent to it)
+/// - `Workers` - `None`
+/// - `StopOnError` - `false`
+/// - `WorkingDir` - `""`
+/// - `OutputDir` - `""`
+/// - `ErrorDir` - `""`
+/// - `ResultSpecs` - `"TestResult.xml"`
+/// - `ShadowCopy` - `false`
+/// - `TeamCity` - `false`
+/// - `ErrorLevel` - `Error`
+/// ## Defaults
+let NUnit3Defaults =
+    {
+      ToolPath = findToolInSubPath  "nunit3-console.exe" (currentDirectory @@ "tools" @@ "Nunit")
+      Testlist = ""
+      Where = ""
+      Config = ""
+      ProcessModel = DefaultProcessModel
+      Agents = None
+      Domain = DefaultDomainModel
+      Framework = Default
+      Force32bit = false
+      DisposeRunners = false
+      TimeOut = TimeSpan.FromMilliseconds((float)Int32.MaxValue)
+      Seed = -1
+      Workers = None
+      StopOnError = false
+      WorkingDir = ""
+      OutputDir = ""
+      ErrorDir = ""
+      ResultSpecs = [currentDirectory @@ "TestResult.xml"]
+      ShadowCopy = false
+      TeamCity = false
+      ErrorLevel = Error
+    }
+
+/// Tries to detect the working directory as specified in the parameters or via TeamCity settings
+/// [omit]
+let getWorkingDir parameters = 
+    Seq.find isNotNullOrEmpty [ parameters.WorkingDir
+                                environVar ("teamcity.build.workingDir")
+                                "." ]
+    |> Path.GetFullPath
+
+let buildNUnit3Args parameters assemblies =
+    let appendResultString results sb =
+        match results, sb with
+        | [], sb -> append "--noresult" sb
+        | x, sb when x = NUnit3Defaults.ResultSpecs -> sb
+        | results, sb -> (sb, results) ||> Seq.fold (fun builder str -> append (sprintf "--result=%s" str) builder)
+
+    new StringBuilder()
+    |> append "--noheader"
+    |> appendIfNotNullOrEmpty parameters.Testlist "--testlist="
+    |> appendIfNotNullOrEmpty parameters.Where "--where="
+    |> appendIfNotNullOrEmpty parameters.Config "--config="
+    |> appendIfNotNullOrEmpty parameters.ProcessModel.ParamString "--process="
+    |> appendIfSome parameters.Agents (sprintf "--agents=%i")
+    |> appendIfNotNullOrEmpty parameters.Domain.ParamString "--domain="
+    |> appendIfNotNullOrEmpty parameters.Framework.ParamString "--framework="
+    |> appendIfTrue parameters.Force32bit "--x86"
+    |> appendIfTrue parameters.DisposeRunners "--dispose-runners"
+    |> appendIfTrue (parameters.TimeOut <> NUnit3Defaults.TimeOut) (sprintf "--timeout=%i" (int parameters.TimeOut.TotalMilliseconds))
+    |> appendIfTrue (parameters.Seed >= 0) (sprintf "--seed=%i" parameters.Seed)
+    |> appendIfSome parameters.Workers (sprintf "--workers=%i")
+    |> appendIfTrue parameters.StopOnError "--stoponerror"
+    |> appendIfNotNullOrEmpty parameters.WorkingDir "--work="
+    |> appendIfNotNullOrEmpty parameters.OutputDir "--output="
+    |> appendIfNotNullOrEmpty parameters.ErrorDir "--err="
+    |> appendResultString parameters.ResultSpecs
+    |> appendIfTrue parameters.ShadowCopy "--shadowcopy"
+    |> appendIfTrue parameters.TeamCity "--teamcity"
+    |> appendFileNamesIfNotNull assemblies
+    |> toText
+
+let NUnit3 (setParams : NUnit3Params -> NUnit3Params) (assemblies : string seq) =
+    let details = assemblies |> separated ", "
+    traceStartTask "NUnit" details
+    let parameters = NUnit3Defaults |> setParams
+    let assemblies = assemblies |> Seq.toArray
+    if Array.isEmpty assemblies then failwith "NUnit: cannot run tests (the assembly list is empty)."
+    let tool = parameters.ToolPath
+    let args = buildNUnit3Args parameters assemblies
+    trace (tool + " " + args)
+    let result = 
+        ExecProcess (fun info -> 
+            info.FileName <- tool
+            info.WorkingDirectory <- getWorkingDir parameters
+            info.Arguments <- args) parameters.TimeOut
+    let errorDescription error = 
+        match error with
+        | OK -> "OK"
+        | TestsFailed -> sprintf "NUnit test failed (%d)." error
+        | FatalError x -> sprintf "NUnit test failed. Process finished with exit code %s (%d)." x error
+
+    match parameters.ErrorLevel with
+    | DontFailBuild -> 
+        match result with
+        | OK | TestsFailed -> traceEndTask "NUnit" details
+        | _ -> raise (FailedTestsException(errorDescription result))
+    | Error | FailOnFirstError -> 
+        match result with
+        | OK -> traceEndTask "NUnit" details
+        | _ -> raise (FailedTestsException(errorDescription result))