diff --git a/src/BenchmarkDotNet.Annotations/Jobs/RuntimeMoniker.cs b/src/BenchmarkDotNet.Annotations/Jobs/RuntimeMoniker.cs
index 8e903db129..83f54ab6d1 100644
--- a/src/BenchmarkDotNet.Annotations/Jobs/RuntimeMoniker.cs
+++ b/src/BenchmarkDotNet.Annotations/Jobs/RuntimeMoniker.cs
@@ -144,26 +144,6 @@ public enum RuntimeMoniker
         /// </summary>
         NativeAot11_0,
 
-        /// <summary>
-        /// WebAssembly with default .Net version
-        /// </summary>
-        Wasm,
-
-        /// <summary>
-        /// WebAssembly with net5.0
-        /// </summary>
-        WasmNet50,
-
-        /// <summary>
-        /// WebAssembly with net6.0
-        /// </summary>
-        WasmNet60,
-
-        /// <summary>
-        /// WebAssembly with net7.0
-        /// </summary>
-        WasmNet70,
-
         /// <summary>
         /// WebAssembly with net8.0
         /// </summary>
diff --git a/src/BenchmarkDotNet.Diagnostics.dotMemory/DotMemoryDiagnoser.cs b/src/BenchmarkDotNet.Diagnostics.dotMemory/DotMemoryDiagnoser.cs
index 5782616d5b..0624aa0155 100644
--- a/src/BenchmarkDotNet.Diagnostics.dotMemory/DotMemoryDiagnoser.cs
+++ b/src/BenchmarkDotNet.Diagnostics.dotMemory/DotMemoryDiagnoser.cs
@@ -100,10 +100,6 @@ internal override bool IsSupported(RuntimeMoniker runtimeMoniker)
             case RuntimeMoniker.NativeAot90:
             case RuntimeMoniker.NativeAot10_0:
             case RuntimeMoniker.NativeAot11_0:
-            case RuntimeMoniker.Wasm:
-            case RuntimeMoniker.WasmNet50:
-            case RuntimeMoniker.WasmNet60:
-            case RuntimeMoniker.WasmNet70:
             case RuntimeMoniker.WasmNet80:
             case RuntimeMoniker.WasmNet90:
             case RuntimeMoniker.WasmNet10_0:
diff --git a/src/BenchmarkDotNet.Diagnostics.dotTrace/DotTraceDiagnoser.cs b/src/BenchmarkDotNet.Diagnostics.dotTrace/DotTraceDiagnoser.cs
index 1ff18625de..d7c8382f4d 100644
--- a/src/BenchmarkDotNet.Diagnostics.dotTrace/DotTraceDiagnoser.cs
+++ b/src/BenchmarkDotNet.Diagnostics.dotTrace/DotTraceDiagnoser.cs
@@ -103,10 +103,6 @@ internal override bool IsSupported(RuntimeMoniker runtimeMoniker)
             case RuntimeMoniker.NativeAot90:
             case RuntimeMoniker.NativeAot10_0:
             case RuntimeMoniker.NativeAot11_0:
-            case RuntimeMoniker.Wasm:
-            case RuntimeMoniker.WasmNet50:
-            case RuntimeMoniker.WasmNet60:
-            case RuntimeMoniker.WasmNet70:
             case RuntimeMoniker.WasmNet80:
             case RuntimeMoniker.WasmNet90:
             case RuntimeMoniker.WasmNet10_0:
diff --git a/src/BenchmarkDotNet/ConsoleArguments/ConfigParser.cs b/src/BenchmarkDotNet/ConsoleArguments/ConfigParser.cs
index 2992a09cae..b9163654eb 100644
--- a/src/BenchmarkDotNet/ConsoleArguments/ConfigParser.cs
+++ b/src/BenchmarkDotNet/ConsoleArguments/ConfigParser.cs
@@ -578,18 +578,6 @@ private static Job CreateJobForGivenRuntime(Job baseJob, string runtimeId, Comma
                 case RuntimeMoniker.NativeAot11_0:
                     return CreateAotJob(baseJob, options, runtimeMoniker, "", "https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet11/nuget/v3/index.json");
 
-                case RuntimeMoniker.Wasm:
-                    return MakeWasmJob(baseJob, options, RuntimeInformation.IsNetCore ? CoreRuntime.GetCurrentVersion().MsBuildMoniker : "net5.0", runtimeMoniker);
-
-                case RuntimeMoniker.WasmNet50:
-                    return MakeWasmJob(baseJob, options, "net5.0", runtimeMoniker);
-
-                case RuntimeMoniker.WasmNet60:
-                    return MakeWasmJob(baseJob, options, "net6.0", runtimeMoniker);
-
-                case RuntimeMoniker.WasmNet70:
-                    return MakeWasmJob(baseJob, options, "net7.0", runtimeMoniker);
-
                 case RuntimeMoniker.WasmNet80:
                     return MakeWasmJob(baseJob, options, "net8.0", runtimeMoniker);
 
diff --git a/src/BenchmarkDotNet/Environments/Runtimes/WasmRuntime.cs b/src/BenchmarkDotNet/Environments/Runtimes/WasmRuntime.cs
index 7e7fb6ec6b..0c148c0352 100644
--- a/src/BenchmarkDotNet/Environments/Runtimes/WasmRuntime.cs
+++ b/src/BenchmarkDotNet/Environments/Runtimes/WasmRuntime.cs
@@ -37,7 +37,16 @@ public class WasmRuntime : Runtime, IEquatable<WasmRuntime>
         /// <param name="wasmDataDir">Specifies a wasm data directory surfaced as $(WasmDataDir) for the project</param>
         /// <param name="moniker">Runtime moniker</param>
         /// <param name="isMonoRuntime">When true (default), use Mono runtime pack; when false, use CoreCLR runtime pack.</param>
-        public WasmRuntime(string msBuildMoniker = "net5.0", string displayName = "Wasm", string javaScriptEngine = "v8", string javaScriptEngineArguments = "--expose_wasm", bool aot = false, string wasmDataDir = "", RuntimeMoniker moniker = RuntimeMoniker.Wasm, bool isMonoRuntime = true) : base(moniker, msBuildMoniker, displayName)
+        public WasmRuntime(
+            string msBuildMoniker = "net8.0",
+            string displayName = "Wasm",
+            string javaScriptEngine = "v8",
+            string javaScriptEngineArguments = "--expose_wasm",
+            bool aot = false,
+            string wasmDataDir = "",
+            RuntimeMoniker moniker = RuntimeMoniker.WasmNet80,
+            bool isMonoRuntime = true)
+            : base(moniker, msBuildMoniker, displayName)
         {
             if (javaScriptEngine.IsNotBlank() && javaScriptEngine != "v8" && !File.Exists(javaScriptEngine))
                 throw new FileNotFoundException($"Provided {nameof(javaScriptEngine)} file: \"{javaScriptEngine}\" doest NOT exist");
diff --git a/src/BenchmarkDotNet/Extensions/RuntimeMonikerExtensions.cs b/src/BenchmarkDotNet/Extensions/RuntimeMonikerExtensions.cs
index ce0b3ed207..29378656a3 100644
--- a/src/BenchmarkDotNet/Extensions/RuntimeMonikerExtensions.cs
+++ b/src/BenchmarkDotNet/Extensions/RuntimeMonikerExtensions.cs
@@ -111,10 +111,6 @@ internal static Runtime GetRuntime(this RuntimeMoniker runtimeMoniker)
             RuntimeMoniker.Mono60 => new Version(6, 0),
             RuntimeMoniker.Mono70 => new Version(7, 0),
             RuntimeMoniker.Mono80 => new Version(8, 0),
-            RuntimeMoniker.Wasm => Portability.RuntimeInformation.IsNetCore && CoreRuntime.TryGetVersion(out var version) ? version : new Version(5, 0),
-            RuntimeMoniker.WasmNet50 => new Version(5, 0),
-            RuntimeMoniker.WasmNet60 => new Version(6, 0),
-            RuntimeMoniker.WasmNet70 => new Version(7, 0),
             RuntimeMoniker.WasmNet80 => new Version(8, 0),
             RuntimeMoniker.WasmNet90 => new Version(9, 0),
             RuntimeMoniker.WasmNet10_0 => new Version(10, 0),
diff --git a/tests/BenchmarkDotNet.Tests/ConfigParserTests.cs b/tests/BenchmarkDotNet.Tests/ConfigParserTests.cs
index 76393cc631..a8b4245b97 100644
--- a/tests/BenchmarkDotNet.Tests/ConfigParserTests.cs
+++ b/tests/BenchmarkDotNet.Tests/ConfigParserTests.cs
@@ -655,7 +655,7 @@ public void UserCanSpecifyWasmArgs()
         [Fact]
         public void UserCanSpecifyWasmArgsUsingEquals()
         {
-            var parsedConfiguration = ConfigParser.Parse(new[] { "--runtimes", "wasm", "--wasmArgs=--expose_wasm --module" }, new OutputLogger(Output));
+            var parsedConfiguration = ConfigParser.Parse(new[] { "--runtimes", "wasmnet80", "--wasmArgs=--expose_wasm --module" }, new OutputLogger(Output));
             Assert.True(parsedConfiguration.isSuccess);
             var jobs = parsedConfiguration.config.GetJobs();
             foreach (var job in parsedConfiguration.config.GetJobs())
@@ -671,7 +671,7 @@ public void UserCanSpecifyWasmArgsViaResponseFile()
             var tempResponseFile = Path.GetRandomFileName();
             File.WriteAllLines(tempResponseFile, new[]
             {
-                "--runtimes wasm",
+                "--runtimes wasmnet80",
                 "--wasmArgs \"--expose_wasm --module\""
             });
             var parsedConfiguration = ConfigParser.Parse(new[] { $"@{tempResponseFile}" }, new OutputLogger(Output));