diff --git a/clang-tools-extra/clang-tidy/readability/IdentifierNamingCheck.cpp b/clang-tools-extra/clang-tidy/readability/IdentifierNamingCheck.cpp
--- a/clang-tools-extra/clang-tidy/readability/IdentifierNamingCheck.cpp
+++ b/clang-tools-extra/clang-tidy/readability/IdentifierNamingCheck.cpp
@@ -324,6 +324,43 @@
   return Fixup;
 }
 
+static bool isParamInMainLikeFunction(const ParmVarDecl &ParmDecl) {
+  auto IsCharPtrPtr = [](QualType QType) {
+    if (QType.isNull())
+      return false;
+    if (QType = QType->getPointeeType(), QType.isNull())
+      return false;
+    if (QType = QType->getPointeeType(), QType.isNull())
+      return false;
+    return QType->isCharType();
+  };
+  auto IsIntType = [](QualType QType) {
+    if (QType.isNull())
+      return false;
+    if (const auto *Builtin =
+            dyn_cast<BuiltinType>(QType->getUnqualifiedDesugaredType())) {
+      return Builtin->getKind() == BuiltinType::Int;
+    }
+    return false;
+  };
+  const auto *FDecl =
+      dyn_cast_or_null<FunctionDecl>(ParmDecl.getParentFunctionOrMethod());
+  if (!FDecl)
+    return false;
+  if (!IsIntType(FDecl->getReturnType()))
+    return false;
+  if (FDecl->getNumParams() < 2 || FDecl->getNumParams() > 3)
+    return false;
+  if (!IsIntType(FDecl->parameters()[0]->getType()))
+    return false;
+  if (!IsCharPtrPtr(FDecl->parameters()[1]->getType()))
+    return false;
+  if (FDecl->getNumParams() == 3 &&
+      !IsCharPtrPtr(FDecl->parameters()[2]->getType()))
+    return false;
+  return true;
+}
+
 static std::string
 fixupWithStyle(StringRef Name,
                const IdentifierNamingCheck::NamingStyle &Style) {
@@ -434,6 +471,8 @@
   }
 
   if (const auto *Decl = dyn_cast<ParmVarDecl>(D)) {
+    if (isParamInMainLikeFunction(*Decl))
+      return SK_Invalid;
     QualType Type = Decl->getType();
 
     if (Decl->isConstexpr() && NamingStyles[SK_ConstexprVariable])
diff --git a/clang-tools-extra/test/clang-tidy/checkers/readability-identifier-naming-main-like.cpp b/clang-tools-extra/test/clang-tidy/checkers/readability-identifier-naming-main-like.cpp
new file mode 100644
--- /dev/null
+++ b/clang-tools-extra/test/clang-tidy/checkers/readability-identifier-naming-main-like.cpp
@@ -0,0 +1,51 @@
+// RUN: %check_clang_tidy %s readability-identifier-naming %t -- \
+// RUN:   -config='{CheckOptions: [ \
+// RUN:     {key: readability-identifier-naming.ParameterCase, value: CamelCase} \
+// RUN:  ]}'
+
+int mainLike(int argc, char **argv);
+int mainLike(int argc, char **argv, const char **env);
+int mainLike(int argc, const char **argv);
+int mainLike(int argc, const char **argv, const char **env);
+int mainLike(int argc, char *argv[]);
+int mainLike(int argc, const char *argv[]);
+int mainLike(int argc, char *argv[], char *env[]);
+int mainLike(int argc, const char *argv[], const char *env[]);
+void notMain(int argc, char **argv);
+// CHECK-MESSAGES: :[[@LINE-1]]:18: warning: invalid case style for parameter 'argc'
+// CHECK-MESSAGES: :[[@LINE-2]]:31: warning: invalid case style for parameter 'argv'
+void notMain(int argc, char **argv, char **env);
+// CHECK-MESSAGES: :[[@LINE-1]]:18: warning: invalid case style for parameter 'argc'
+// CHECK-MESSAGES: :[[@LINE-2]]:31: warning: invalid case style for parameter 'argv'
+// CHECK-MESSAGES: :[[@LINE-3]]:44: warning: invalid case style for parameter 'env'
+int notMain(int argc, char **argv, char **env, int Extra);
+// CHECK-MESSAGES: :[[@LINE-1]]:17: warning: invalid case style for parameter 'argc'
+// CHECK-MESSAGES: :[[@LINE-2]]:30: warning: invalid case style for parameter 'argv'
+// CHECK-MESSAGES: :[[@LINE-3]]:43: warning: invalid case style for parameter 'env'
+int notMain(int argc, char **argv, int Extra);
+// CHECK-MESSAGES: :[[@LINE-1]]:17: warning: invalid case style for parameter 'argc'
+// CHECK-MESSAGES: :[[@LINE-2]]:30: warning: invalid case style for parameter 'argv'
+int notMain(int argc, char *argv);
+// CHECK-MESSAGES: :[[@LINE-1]]:17: warning: invalid case style for parameter 'argc'
+// CHECK-MESSAGES: :[[@LINE-2]]:29: warning: invalid case style for parameter 'argv'
+int notMain(unsigned argc, char **argv);
+// CHECK-MESSAGES: :[[@LINE-1]]:22: warning: invalid case style for parameter 'argc'
+// CHECK-MESSAGES: :[[@LINE-2]]:35: warning: invalid case style for parameter 'argv'
+int notMain(long argc, char *argv);
+// CHECK-MESSAGES: :[[@LINE-1]]:18: warning: invalid case style for parameter 'argc'
+// CHECK-MESSAGES: :[[@LINE-2]]:30: warning: invalid case style for parameter 'argv'
+int notMain(int argc, char16_t **argv);
+// CHECK-MESSAGES: :[[@LINE-1]]:17: warning: invalid case style for parameter 'argc'
+// CHECK-MESSAGES: :[[@LINE-2]]:34: warning: invalid case style for parameter 'argv'
+int notMain(int argc, char argv[]);
+// CHECK-MESSAGES: :[[@LINE-1]]:17: warning: invalid case style for parameter 'argc'
+// CHECK-MESSAGES: :[[@LINE-2]]:28: warning: invalid case style for parameter 'argv'
+typedef char myFunChar;
+typedef int myFunInt;
+typedef char **myFunCharPtr;
+typedef long myFunLong;
+myFunInt mainLikeTypedef(myFunInt argc, myFunChar **argv);
+int mainLikeTypedef(int argc, myFunCharPtr argv);
+int notMainTypedef(myFunLong argc, char **argv);
+// CHECK-MESSAGES: :[[@LINE-1]]:30: warning: invalid case style for parameter 'argc'
+// CHECK-MESSAGES: :[[@LINE-2]]:43: warning: invalid case style for parameter 'argv'