diff --git a/lldb/include/lldb/Target/Language.h b/lldb/include/lldb/Target/Language.h
--- a/lldb/include/lldb/Target/Language.h
+++ b/lldb/include/lldb/Target/Language.h
@@ -215,6 +215,8 @@
   // nil/null object, this method returns true
   virtual bool IsNilReference(ValueObject &valobj);
 
+  virtual llvm::StringRef NilReferenceSummaryString() { return {}; }
+
   // for a ValueObject of some "reference type", if the language provides a
   // technique to decide whether the reference has ever been assigned to some
   // object, this method will return true if such detection is possible, and if
diff --git a/lldb/source/DataFormatters/ValueObjectPrinter.cpp b/lldb/source/DataFormatters/ValueObjectPrinter.cpp
--- a/lldb/source/DataFormatters/ValueObjectPrinter.cpp
+++ b/lldb/source/DataFormatters/ValueObjectPrinter.cpp
@@ -361,9 +361,11 @@
     error.assign(err_cstr);
 
   if (ShouldPrintValueObject()) {
-    if (IsNil())
-      summary.assign("nil");
-    else if (IsUninitialized())
+    if (IsNil()) {
+      Language *lang_plugin =
+          Language::FindPlugin(m_valobj->GetObjectRuntimeLanguage());
+      summary.assign(lang_plugin->NilReferenceSummaryString().str());
+    } else if (IsUninitialized())
       summary.assign("<uninitialized>");
     else if (m_options.m_omit_summary_depth == 0) {
       TypeSummaryImpl *entry = GetSummaryFormatter();
diff --git a/lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.h b/lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.h
--- a/lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.h
+++ b/lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.h
@@ -88,6 +88,10 @@
   HardcodedFormatters::HardcodedSyntheticFinder
   GetHardcodedSynthetics() override;
 
+  bool IsNilReference(ValueObject &valobj) override;
+
+  llvm::StringRef NilReferenceSummaryString() override { return "nullptr"; }
+
   bool IsSourceFile(llvm::StringRef file_path) const override;
 
   const Highlighter *GetHighlighter() const override { return &m_highlighter; }
diff --git a/lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.cpp b/lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.cpp
--- a/lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.cpp
+++ b/lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.cpp
@@ -1133,6 +1133,15 @@
   return g_formatters;
 }
 
+bool CPlusPlusLanguage::IsNilReference(ValueObject &valobj) {
+  if (valobj.GetCompilerType().GetMinimumLanguage() != eLanguageTypeC_plus_plus ||
+      !valobj.IsPointerType())
+    return false;
+  bool canReadValue = true;
+  bool isZero = valobj.GetValueAsUnsigned(0, &canReadValue) == 0;
+  return canReadValue && isZero;
+}
+
 bool CPlusPlusLanguage::IsSourceFile(llvm::StringRef file_path) const {
   const auto suffixes = {".cpp", ".cxx", ".c++", ".cc",  ".c",
                          ".h",   ".hh",  ".hpp", ".hxx", ".h++"};
diff --git a/lldb/source/Plugins/Language/ObjC/ObjCLanguage.h b/lldb/source/Plugins/Language/ObjC/ObjCLanguage.h
--- a/lldb/source/Plugins/Language/ObjC/ObjCLanguage.h
+++ b/lldb/source/Plugins/Language/ObjC/ObjCLanguage.h
@@ -119,6 +119,8 @@
 
   bool IsNilReference(ValueObject &valobj) override;
 
+  llvm::StringRef NilReferenceSummaryString() override { return "nil"; }
+
   bool IsSourceFile(llvm::StringRef file_path) const override;
 
   const Highlighter *GetHighlighter() const override { return &m_highlighter; }
diff --git a/lldb/test/API/functionalities/data-formatter/data-formatter-stl/libcxx/string/TestDataFormatterLibcxxString.py b/lldb/test/API/functionalities/data-formatter/data-formatter-stl/libcxx/string/TestDataFormatterLibcxxString.py
--- a/lldb/test/API/functionalities/data-formatter/data-formatter-stl/libcxx/string/TestDataFormatterLibcxxString.py
+++ b/lldb/test/API/functionalities/data-formatter/data-formatter-stl/libcxx/string/TestDataFormatterLibcxxString.py
@@ -77,6 +77,7 @@
                 '(%s::u32string) u32_empty = ""'%ns,
                 '(%s::basic_string<unsigned char, %s::char_traits<unsigned char>, '
                 '%s::allocator<unsigned char> >) uchar = "aaaaa"'%(ns,ns,ns),
+                '(%s::string *) null_str = nullptr'%ns,
         ])
 
         self.runCmd("n")
@@ -114,6 +115,7 @@
                 '(%s::u32string) u32_empty = ""'%ns,
                 '(%s::basic_string<unsigned char, %s::char_traits<unsigned char>, '
                 '%s::allocator<unsigned char> >) uchar = "aaaaa"'%(ns,ns,ns),
+                '(%s::string *) null_str = nullptr'%ns,
         ])
 
         # The test assumes that std::string is in its cap-size-data layout.
diff --git a/lldb/test/API/functionalities/data-formatter/data-formatter-stl/libcxx/string/main.cpp b/lldb/test/API/functionalities/data-formatter/data-formatter-stl/libcxx/string/main.cpp
--- a/lldb/test/API/functionalities/data-formatter/data-formatter-stl/libcxx/string/main.cpp
+++ b/lldb/test/API/functionalities/data-formatter/data-formatter-stl/libcxx/string/main.cpp
@@ -71,6 +71,7 @@
     std::u32string u32_string(U"🍄🍅🍆🍌");
     std::u32string u32_empty(U"");
     std::basic_string<unsigned char> uchar(5, 'a');
+    std::string *null_str = nullptr;
 
 #if _LIBCPP_ABI_VERSION == 1
     std::string garbage1, garbage2, garbage3, garbage4, garbage5;