diff --git a/llvm/test/tools/llvm-readobj/ELF/groups.test b/llvm/test/tools/llvm-readobj/ELF/groups.test
--- a/llvm/test/tools/llvm-readobj/ELF/groups.test
+++ b/llvm/test/tools/llvm-readobj/ELF/groups.test
@@ -4,6 +4,7 @@
 # RUN: yaml2obj %s -o %t.o
 # RUN: llvm-readobj -g %t.o | FileCheck %s
 # RUN: llvm-readobj --elf-section-groups %t.o | FileCheck %s
+# RUN: llvm-readobj --elf-section-groups %t.o --elf-output-style=JSON --pretty-print | FileCheck %s --check-prefix=JSON
 # RUN: llvm-readelf -g %t.o | FileCheck --check-prefix=GNU %s
 
 # CHECK:      Groups {
@@ -41,6 +42,57 @@
 # GNU-NEXT:  [    5] .text.bar
 # GNU-NEXT:  [    6] .rela.text.bar
 
+# JSON:      "Groups": {
+# JSON-NEXT:   "Group": {
+# JSON-NEXT:     "Name": {
+# JSON-NEXT:       "Name": ".group",
+# JSON-NEXT:       "Value": 16
+# JSON-NEXT:     },
+# JSON-NEXT:     "Index": 1,
+# JSON-NEXT:     "Link": 7,
+# JSON-NEXT:     "Info": 1,
+# JSON-NEXT:     "Type": {
+# JSON-NEXT:       "Name": "COMDAT",
+# JSON-NEXT:       "Value": 1
+# JSON-NEXT:     },
+# JSON-NEXT:     "Signature": "foo",
+# JSON-NEXT:     "GroupSections": [
+# JSON-NEXT:       {
+# JSON-NEXT:         "Name": ".text.foo",
+# JSON-NEXT:         "Index": 3
+# JSON-NEXT:       },
+# JSON-NEXT:       {
+# JSON-NEXT:         "Name": ".rela.text.foo",
+# JSON-NEXT:         "Index": 4
+# JSON-NEXT:       }
+# JSON-NEXT:     ]
+# JSON-NEXT:   },
+# JSON-NEXT:   "Group": {
+# JSON-NEXT:     "Name": {
+# JSON-NEXT:       "Name": ".group1",
+# JSON-NEXT:       "Value": 64
+# JSON-NEXT:     },
+# JSON-NEXT:     "Index": 2,
+# JSON-NEXT:     "Link": 7,
+# JSON-NEXT:     "Info": 2,
+# JSON-NEXT:     "Type": {
+# JSON-NEXT:       "Name": "COMDAT",
+# JSON-NEXT:       "Value": 1
+# JSON-NEXT:     },
+# JSON-NEXT:     "Signature": "bar",
+# JSON-NEXT:     "GroupSections": [
+# JSON-NEXT:       {
+# JSON-NEXT:         "Name": ".text.bar",
+# JSON-NEXT:         "Index": 5
+# JSON-NEXT:       },
+# JSON-NEXT:       {
+# JSON-NEXT:         "Name": ".rela.text.bar",
+# JSON-NEXT:         "Index": 6
+# JSON-NEXT:       }
+# JSON-NEXT:     ]
+# JSON-NEXT:   }
+# JSON-NEXT: }
+
 --- !ELF
 FileHeader:
   Class: ELFCLASS64
diff --git a/llvm/tools/llvm-readobj/ELFDumper.cpp b/llvm/tools/llvm-readobj/ELFDumper.cpp
--- a/llvm/tools/llvm-readobj/ELFDumper.cpp
+++ b/llvm/tools/llvm-readobj/ELFDumper.cpp
@@ -712,6 +712,7 @@
   virtual void printZeroSymbolOtherField(const Elf_Sym &Symbol) const;
 
 protected:
+  virtual std::string getGroupSectionHeaderName() const;
   void printSymbolOtherField(const Elf_Sym &Symbol) const;
   virtual void printExpandedRelRelaReloc(const Relocation<ELFT> &R,
                                          StringRef SymbolName,
@@ -721,6 +722,8 @@
                                         StringRef RelocName);
   virtual void printRelocationSectionInfo(const Elf_Shdr &Sec, StringRef Name,
                                           const unsigned SecNdx);
+  virtual void printSectionGroupMembers(StringRef Name, uint64_t Idx) const;
+  virtual void printEmptyGroupMessage() const;
 
   ScopedPrinter &W;
 };
@@ -734,6 +737,8 @@
   JSONELFDumper(const object::ELFObjectFile<ELFT> &ObjF, ScopedPrinter &Writer)
       : LLVMELFDumper<ELFT>(ObjF, Writer) {}
 
+  std::string getGroupSectionHeaderName() const override;
+
   void printFileSummary(StringRef FileStr, ObjectFile &Obj,
                         ArrayRef<std::string> InputFilenames,
                         const Archive *A) override;
@@ -746,6 +751,10 @@
   void printRelocationSectionInfo(const Elf_Shdr &Sec, StringRef Name,
                                   const unsigned SecNdx) override;
 
+  void printSectionGroupMembers(StringRef Name, uint64_t Idx) const override;
+
+  void printEmptyGroupMessage() const override;
+
 private:
   std::unique_ptr<DictScope> FileScope;
 };
@@ -6717,9 +6726,9 @@
     W.printNumber("Link", G.Link);
     W.printNumber("Info", G.Info);
     W.printHex("Type", getGroupType(G.Type), G.Type);
-    W.startLine() << "Signature: " << G.Signature << "\n";
+    W.printString("Signature", G.Signature);
 
-    ListScope L(W, "Section(s) in group");
+    ListScope L(W, getGroupSectionHeaderName());
     for (const GroupMember &GM : G.Members) {
       const GroupSection *MainGroup = Map[GM.Index];
       if (MainGroup != &G)
@@ -6729,12 +6738,23 @@
             Twine(MainGroup->Index) +
             ", was also found in the group section with index " +
             Twine(G.Index));
-      W.startLine() << GM.Name << " (" << GM.Index << ")\n";
+      printSectionGroupMembers(GM.Name, GM.Index);
     }
   }
 
   if (V.empty())
-    W.startLine() << "There are no group sections in the file.\n";
+    printEmptyGroupMessage();
+}
+
+template <class ELFT>
+std::string LLVMELFDumper<ELFT>::getGroupSectionHeaderName() const {
+  return "Section(s) in group";
+}
+
+template <class ELFT>
+void LLVMELFDumper<ELFT>::printSectionGroupMembers(StringRef Name,
+                                                   uint64_t Idx) const {
+  W.startLine() << Name << " (" << Idx << ")\n";
 }
 
 template <class ELFT> void LLVMELFDumper<ELFT>::printRelocations() {
@@ -6787,6 +6807,10 @@
   this->printRelocationsHelper(Sec);
 }
 
+template <class ELFT> void LLVMELFDumper<ELFT>::printEmptyGroupMessage() const {
+  W.startLine() << "There are no group sections in the file.\n";
+}
+
 template <class ELFT>
 void LLVMELFDumper<ELFT>::printRelRelaReloc(const Relocation<ELFT> &R,
                                             const RelSymbol<ELFT> &RelSym) {
@@ -7733,3 +7757,20 @@
   ListScope D(this->W, "Relocs");
   this->printRelocationsHelper(Sec);
 }
+
+template <class ELFT>
+std::string JSONELFDumper<ELFT>::getGroupSectionHeaderName() const {
+  return "GroupSections";
+}
+
+template <class ELFT>
+void JSONELFDumper<ELFT>::printSectionGroupMembers(StringRef Name,
+                                                   uint64_t Idx) const {
+  DictScope Grp(this->W);
+  this->W.printString("Name", Name);
+  this->W.printNumber("Index", Idx);
+}
+
+template <class ELFT> void JSONELFDumper<ELFT>::printEmptyGroupMessage() const {
+  // JSON output does not need to print anything for empty groups
+}