diff --git a/clang-tools-extra/clang-tidy/cppcoreguidelines/CppCoreGuidelinesTidyModule.cpp b/clang-tools-extra/clang-tidy/cppcoreguidelines/CppCoreGuidelinesTidyModule.cpp
--- a/clang-tools-extra/clang-tidy/cppcoreguidelines/CppCoreGuidelinesTidyModule.cpp
+++ b/clang-tools-extra/clang-tidy/cppcoreguidelines/CppCoreGuidelinesTidyModule.cpp
@@ -9,6 +9,7 @@
 #include "../ClangTidy.h"
 #include "../ClangTidyModule.h"
 #include "../ClangTidyModuleRegistry.h"
+#include "../google/ExplicitConstructorCheck.h"
 #include "../misc/NonPrivateMemberVariablesInClassesCheck.h"
 #include "../misc/UnconventionalAssignOperatorCheck.h"
 #include "../modernize/AvoidCArraysCheck.h"
@@ -52,6 +53,8 @@
         "cppcoreguidelines-avoid-magic-numbers");
     CheckFactories.registerCheck<AvoidNonConstGlobalVariablesCheck>(
         "cppcoreguidelines-avoid-non-const-global-variables");
+    CheckFactories.registerCheck<google::ExplicitConstructorCheck>(
+        "cppcoreguidelines-explicit-constructor-and-conversion");
     CheckFactories.registerCheck<modernize::UseOverrideCheck>(
         "cppcoreguidelines-explicit-virtual-functions");
     CheckFactories.registerCheck<InitVariablesCheck>(
diff --git a/clang-tools-extra/docs/ReleaseNotes.rst b/clang-tools-extra/docs/ReleaseNotes.rst
--- a/clang-tools-extra/docs/ReleaseNotes.rst
+++ b/clang-tools-extra/docs/ReleaseNotes.rst
@@ -127,6 +127,11 @@
   :doc:`concurrency-thread-canceltype-asynchronous
   <clang-tidy/checks/concurrency-thread-canceltype-asynchronous>` was added.
 
+- New alias :doc:`cppcoreguidelines-explicit-constructor-and-conversion
+  <clang-tidy/checks/cppcoreguidelines-explicit-constructor-and-conversion>` to
+  :doc:`google-explicit-constructor
+  <clang-tidy/checks/google-explicit-constructor>` was added.
+
 Changes in existing checks
 ^^^^^^^^^^^^^^^^^^^^^^^^^^
 
diff --git a/clang-tools-extra/docs/clang-tidy/checks/cppcoreguidelines-explicit-constructor-and-conversion.rst b/clang-tools-extra/docs/clang-tidy/checks/cppcoreguidelines-explicit-constructor-and-conversion.rst
new file mode 100644
--- /dev/null
+++ b/clang-tools-extra/docs/clang-tidy/checks/cppcoreguidelines-explicit-constructor-and-conversion.rst
@@ -0,0 +1,14 @@
+.. title:: clang-tidy - cppcoreguidelines-explicit-constructor-and-conversion
+.. meta::
+   :http-equiv=refresh: 5;URL=google-explicit-constructor.html
+
+cppcoreguidelines-explicit-constructor
+======================================
+
+The cppcoreguidelines-explicit-constructor-and-conversion check is an alias,
+please see `google-explicit-constructor <google-explicit-constructor.html>`_
+for more information.
+
+This check implements `C.46 <https://github.com/isocpp/CppCoreGuidelines/blob/master/CppCoreGuidelines.md#c46-by-default-declare-single-argument-constructors-explicit>`_
+and `C.164 <https://github.com/isocpp/CppCoreGuidelines/blob/master/CppCoreGuidelines.md#c164-avoid-implicit-conversion-operators>`_
+from the CppCoreGuidelines.
diff --git a/clang-tools-extra/docs/clang-tidy/checks/list.rst b/clang-tools-extra/docs/clang-tidy/checks/list.rst
--- a/clang-tools-extra/docs/clang-tidy/checks/list.rst
+++ b/clang-tools-extra/docs/clang-tidy/checks/list.rst
@@ -407,6 +407,7 @@
    `cppcoreguidelines-avoid-c-arrays <cppcoreguidelines-avoid-c-arrays.html>`_, `modernize-avoid-c-arrays <modernize-avoid-c-arrays.html>`_,
    `cppcoreguidelines-avoid-magic-numbers <cppcoreguidelines-avoid-magic-numbers.html>`_, `readability-magic-numbers <readability-magic-numbers.html>`_,
    `cppcoreguidelines-c-copy-assignment-signature <cppcoreguidelines-c-copy-assignment-signature.html>`_, `misc-unconventional-assign-operator <misc-unconventional-assign-operator.html>`_,
+   `cppcoreguidelines-explicit-constructor-and-conversion <cppcoreguidelines-explicit-constructor-and-conversion.html>`_, `google-explicit-constructor <google-explicit-constructor.html>`_, "Yes"
    `cppcoreguidelines-explicit-virtual-functions <cppcoreguidelines-explicit-virtual-functions.html>`_, `modernize-use-override <modernize-use-override.html>`_, "Yes"
    `cppcoreguidelines-non-private-member-variables-in-classes <cppcoreguidelines-non-private-member-variables-in-classes.html>`_, `misc-non-private-member-variables-in-classes <misc-non-private-member-variables-in-classes.html>`_,
    `fuchsia-header-anon-namespaces <fuchsia-header-anon-namespaces.html>`_, `google-build-namespaces <google-build-namespaces.html>`_,