diff --git a/clang-tools-extra/clang-tidy/cppcoreguidelines/CMakeLists.txt b/clang-tools-extra/clang-tidy/cppcoreguidelines/CMakeLists.txt
--- a/clang-tools-extra/clang-tidy/cppcoreguidelines/CMakeLists.txt
+++ b/clang-tools-extra/clang-tidy/cppcoreguidelines/CMakeLists.txt
@@ -7,6 +7,7 @@
   AvoidGotoCheck.cpp
   AvoidNonConstGlobalVariablesCheck.cpp
   CppCoreGuidelinesTidyModule.cpp
+  DeclareLoopVariableInTheInitializerCheck.cpp
   InitVariablesCheck.cpp
   InterfacesGlobalInitCheck.cpp
   MacroUsageCheck.cpp
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
@@ -16,6 +16,7 @@
 #include "../readability/MagicNumbersCheck.h"
 #include "AvoidGotoCheck.h"
 #include "AvoidNonConstGlobalVariablesCheck.h"
+#include "DeclareLoopVariableInTheInitializerCheck.h"
 #include "InitVariablesCheck.h"
 #include "InterfacesGlobalInitCheck.h"
 #include "MacroUsageCheck.h"
@@ -52,6 +53,8 @@
         "cppcoreguidelines-avoid-magic-numbers");
     CheckFactories.registerCheck<AvoidNonConstGlobalVariablesCheck>(
         "cppcoreguidelines-avoid-non-const-global-variables");
+    CheckFactories.registerCheck<DeclareLoopVariableInTheInitializerCheck>(
+        "cppcoreguidelines-declare-loop-variable-in-the-initializer");
     CheckFactories.registerCheck<modernize::UseOverrideCheck>(
         "cppcoreguidelines-explicit-virtual-functions");
     CheckFactories.registerCheck<InitVariablesCheck>(
diff --git a/clang-tools-extra/clang-tidy/cppcoreguidelines/DeclareLoopVariableInTheInitializerCheck.h b/clang-tools-extra/clang-tidy/cppcoreguidelines/DeclareLoopVariableInTheInitializerCheck.h
new file mode 100644
--- /dev/null
+++ b/clang-tools-extra/clang-tidy/cppcoreguidelines/DeclareLoopVariableInTheInitializerCheck.h
@@ -0,0 +1,36 @@
+//===--- DeclareLoopVariableInTheInitializerCheck.h - clang-tidy *- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_CPPCOREGUIDELINES_DECLARELOOPVARIABLEINTHEINITIALIZERCHECK_H
+#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_CPPCOREGUIDELINES_DECLARELOOPVARIABLEINTHEINITIALIZERCHECK_H
+
+#include "../ClangTidyCheck.h"
+
+namespace clang {
+namespace tidy {
+namespace cppcoreguidelines {
+
+/// Checks if a loop variable is declared in the initializer part of a
+/// for-statement.
+///
+/// For the user-facing documentation see:
+/// http://clang.llvm.org/extra/clang-tidy/checks/cppcoreguidelines-declare-loop-variable-in-the-initializer.html
+class DeclareLoopVariableInTheInitializerCheck : public ClangTidyCheck {
+public:
+  DeclareLoopVariableInTheInitializerCheck(StringRef Name,
+                                           ClangTidyContext *Context)
+      : ClangTidyCheck(Name, Context) {}
+  void registerMatchers(ast_matchers::MatchFinder *Finder) override;
+  void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
+};
+
+} // namespace cppcoreguidelines
+} // namespace tidy
+} // namespace clang
+
+#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_CPPCOREGUIDELINES_DECLARELOOPVARIABLEINTHEINITIALIZERCHECK_H
diff --git a/clang-tools-extra/clang-tidy/cppcoreguidelines/DeclareLoopVariableInTheInitializerCheck.cpp b/clang-tools-extra/clang-tidy/cppcoreguidelines/DeclareLoopVariableInTheInitializerCheck.cpp
new file mode 100644
--- /dev/null
+++ b/clang-tools-extra/clang-tidy/cppcoreguidelines/DeclareLoopVariableInTheInitializerCheck.cpp
@@ -0,0 +1,35 @@
+//===--- DeclareLoopVariableInTheInitializerCheck.cpp - clang-tidy --------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "DeclareLoopVariableInTheInitializerCheck.h"
+#include "clang/AST/ASTContext.h"
+#include "clang/ASTMatchers/ASTMatchFinder.h"
+
+using namespace clang::ast_matchers;
+
+namespace clang {
+namespace tidy {
+namespace cppcoreguidelines {
+
+void DeclareLoopVariableInTheInitializerCheck::registerMatchers(
+    MatchFinder *Finder) {
+  Finder->addMatcher(forStmt(unless(has(declStmt()))).bind("forStmt"), this);
+}
+
+void DeclareLoopVariableInTheInitializerCheck::check(
+    const MatchFinder::MatchResult &Result) {
+  const auto *MatchedForStmt = Result.Nodes.getNodeAs<ForStmt>("forStmt");
+
+  diag(MatchedForStmt->getBeginLoc(),
+       "Prefer to declare a loop variable in the initializer part of a "
+       "for-statement");
+}
+
+} // namespace cppcoreguidelines
+} // namespace tidy
+} // namespace clang
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
@@ -89,6 +89,11 @@
   Finds inner loops that have not been unrolled, as well as fully unrolled
   loops with unknown loops bounds or a large number of iterations.
 
+- New :doc:`cppcoreguidelines-declare-loop-variable-in-the-initializer
+  <clang-tidy/checks/cppcoreguidelines-declare-loop-variable-in-the-initializer>` check.
+
+  Checks if a loop variable is declared in the initializer part of a for-statement.
+
 - New :doc:`cppcoreguidelines-prefer-member-initializer
   <clang-tidy/checks/cppcoreguidelines-prefer-member-initializer>` check.
 
diff --git a/clang-tools-extra/docs/clang-tidy/checks/cppcoreguidelines-declare-loop-variable-in-the-initializer.rst b/clang-tools-extra/docs/clang-tidy/checks/cppcoreguidelines-declare-loop-variable-in-the-initializer.rst
new file mode 100644
--- /dev/null
+++ b/clang-tools-extra/docs/clang-tidy/checks/cppcoreguidelines-declare-loop-variable-in-the-initializer.rst
@@ -0,0 +1,33 @@
+.. title:: clang-tidy - cppcoreguidelines-declare-loop-variable-in-the-initializer
+
+cppcoreguidelines-declare-loop-variable-in-the-initializer
+==========================================================
+
+Checks if a loop variable is declared in the initializer part of a for-statement.
+
+This check implements the rule `ES.74 <https://github.com/isocpp/CppCoreGuidelines/blob/master/CppCoreGuidelines.md#es74-prefer-to-declare-a-loop-variable-in-the-initializer-part-of-a-for-statement>`_ of the C++ Core Guidelines.
+
+It does also cover parts of:
+    - `ES.26 <https://github.com/isocpp/CppCoreGuidelines/blob/master/CppCoreGuidelines.md#es26-dont-use-a-variable-for-two-unrelated-purposes>`_
+    - `ES.5 <https://github.com/isocpp/CppCoreGuidelines/blob/master/CppCoreGuidelines.md#es5-keep-scopes-small>`_
+    - `ES.6 <https://github.com/isocpp/CppCoreGuidelines/blob/master/CppCoreGuidelines.md#es6-declare-names-in-for-statement-initializers-and-conditions-to-limit-scope>`_
+
+
+.. code-block:: c++
+
+    void forLoopFunction() {
+        const int Limit{10};
+        int I{0};
+
+        // Should print a warning
+        for (; I < Limit; I++) {
+        }
+
+        // Should print a warning
+        for (I = 0; I < Limit; I++) {
+        }
+
+        // Good
+        for (int I{0}; I < Limit; I++) {
+        }
+    }
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
@@ -143,6 +143,7 @@
    `concurrency-thread-canceltype-asynchronous <concurrency-thread-canceltype-asynchronous.html>`_,
    `cppcoreguidelines-avoid-goto <cppcoreguidelines-avoid-goto.html>`_,
    `cppcoreguidelines-avoid-non-const-global-variables <cppcoreguidelines-avoid-non-const-global-variables.html>`_,
+   `cppcoreguidelines-declare-loop-variable-in-the-initializer <cppcoreguidelines-declare-loop-variable-in-the-initializer.html>`_,
    `cppcoreguidelines-init-variables <cppcoreguidelines-init-variables.html>`_, "Yes"
    `cppcoreguidelines-interfaces-global-init <cppcoreguidelines-interfaces-global-init.html>`_,
    `cppcoreguidelines-macro-usage <cppcoreguidelines-macro-usage.html>`_,
diff --git a/clang-tools-extra/test/clang-tidy/checkers/cppcoreguidelines-declare-loop-variable-in-the-initializer.cpp b/clang-tools-extra/test/clang-tidy/checkers/cppcoreguidelines-declare-loop-variable-in-the-initializer.cpp
new file mode 100644
--- /dev/null
+++ b/clang-tools-extra/test/clang-tidy/checkers/cppcoreguidelines-declare-loop-variable-in-the-initializer.cpp
@@ -0,0 +1,17 @@
+// RUN: %check_clang_tidy %s cppcoreguidelines-declare-loop-variable-in-the-initializer %t
+
+void forLoopFunction() {
+  const int Limit{10};
+  int I{0};
+
+  // CHECK-MESSAGES: :[[@LINE+1]]:3: warning: Prefer to declare a loop variable in the initializer part of a for-statement [cppcoreguidelines-declare-loop-variable-in-the-initializer]
+  for (; I < Limit; I++) {
+  }
+
+  // CHECK-MESSAGES: :[[@LINE+1]]:3: warning: Prefer to declare a loop variable in the initializer part of a for-statement [cppcoreguidelines-declare-loop-variable-in-the-initializer]
+  for (I = 0; I < Limit; I++) {
+  }
+
+  for (int I{0}; I < Limit; I++) { // OK
+  }
+}