Index: lldb/include/lldb/Interpreter/CommandCompletions.h
===================================================================
--- lldb/include/lldb/Interpreter/CommandCompletions.h
+++ lldb/include/lldb/Interpreter/CommandCompletions.h
@@ -42,10 +42,11 @@
     eFrameIndexCompletion = (1u << 14),
     eThreadIndexCompletion = (1u << 15),
     eWatchPointIDCompletion = (1u << 16),
+    eModuleUUIDCompletion = (1u << 17),
     // This item serves two purposes.  It is the last element in the enum, so
     // you can add custom enums starting from here in your Option class. Also
     // if you & in this bit the base code will not process the option.
-    eCustomCompletion = (1u << 17)
+    eCustomCompletion = (1u << 18)
   };
 
   static bool InvokeCommonCompletionCallbacks(
@@ -73,6 +74,9 @@
   static void Modules(CommandInterpreter &interpreter,
                       CompletionRequest &request, SearchFilter *searcher);
 
+  static void ModuleUUIDs(CommandInterpreter &interpreter,
+                          CompletionRequest &request, SearchFilter *searcher);
+
   static void Symbols(CommandInterpreter &interpreter,
                       CompletionRequest &request, SearchFilter *searcher);
 
Index: lldb/include/lldb/lldb-enumerations.h
===================================================================
--- lldb/include/lldb/lldb-enumerations.h
+++ lldb/include/lldb/lldb-enumerations.h
@@ -592,6 +592,7 @@
   eArgRawInput,
   eArgTypeCommand,
   eArgTypeColumnNum,
+  eArgTypeModuleUUID,
   eArgTypeLastArg // Always keep this entry as the last entry in this
                   // enumeration!!
 };
Index: lldb/source/Commands/CommandCompletions.cpp
===================================================================
--- lldb/source/Commands/CommandCompletions.cpp
+++ lldb/source/Commands/CommandCompletions.cpp
@@ -55,6 +55,7 @@
       {eDiskDirectoryCompletion, CommandCompletions::DiskDirectories},
       {eSymbolCompletion, CommandCompletions::Symbols},
       {eModuleCompletion, CommandCompletions::Modules},
+      {eModuleUUIDCompletion, CommandCompletions::ModuleUUIDs},
       {eSettingsNameCompletion, CommandCompletions::SettingsNames},
       {ePlatformPluginCompletion, CommandCompletions::PlatformPluginNames},
       {eArchitectureCompletion, CommandCompletions::ArchitectureNames},
@@ -494,6 +495,24 @@
   }
 }
 
+void CommandCompletions::ModuleUUIDs(CommandInterpreter &interpreter,
+                                     CompletionRequest &request,
+                                     SearchFilter *searcher) {
+  const ExecutionContext &exe_ctx = interpreter.GetExecutionContext();
+  if (!exe_ctx.HasTargetScope())
+    return;
+
+  exe_ctx.GetTargetPtr()->GetImages().ForEach(
+      [&request](const lldb::ModuleSP &module) {
+        StreamString strm;
+        module->GetDescription(strm.AsRawOstream(),
+                               lldb::eDescriptionLevelInitial);
+        request.TryCompleteCurrentArg(module->GetUUID().GetAsString(),
+                                      strm.GetString());
+        return true;
+      });
+}
+
 void CommandCompletions::Symbols(CommandInterpreter &interpreter,
                                  CompletionRequest &request,
                                  SearchFilter *searcher) {
Index: lldb/source/Interpreter/CommandObject.cpp
===================================================================
--- lldb/source/Interpreter/CommandObject.cpp
+++ lldb/source/Interpreter/CommandObject.cpp
@@ -1118,7 +1118,8 @@
     { eArgTypeWatchType, "watch-type", CommandCompletions::eNoCompletion, { nullptr, false }, "Specify the type for a watchpoint." },
     { eArgRawInput, "raw-input", CommandCompletions::eNoCompletion, { nullptr, false }, "Free-form text passed to a command without prior interpretation, allowing spaces without requiring quotes.  To pass arguments and free form text put two dashes ' -- ' between the last argument and any raw input." },
     { eArgTypeCommand, "command", CommandCompletions::eNoCompletion, { nullptr, false }, "An LLDB Command line command." },
-    { eArgTypeColumnNum, "column", CommandCompletions::eNoCompletion, { nullptr, false }, "Column number in a source file." }
+    { eArgTypeColumnNum, "column", CommandCompletions::eNoCompletion, { nullptr, false }, "Column number in a source file." },
+    { eArgTypeModuleUUID, "module-uuid", CommandCompletions::eModuleUUIDCompletion, { nullptr, false }, "A module UUID value." }
     // clang-format on
 };
 
Index: lldb/source/Interpreter/OptionGroupUUID.cpp
===================================================================
--- lldb/source/Interpreter/OptionGroupUUID.cpp
+++ lldb/source/Interpreter/OptionGroupUUID.cpp
@@ -18,8 +18,16 @@
 OptionGroupUUID::~OptionGroupUUID() {}
 
 static constexpr OptionDefinition g_option_table[] = {
-    {LLDB_OPT_SET_1, false, "uuid", 'u', OptionParser::eRequiredArgument,
-     nullptr, {}, 0, eArgTypeNone, "A module UUID value."},
+    {LLDB_OPT_SET_1,
+     false,
+     "uuid",
+     'u',
+     OptionParser::eRequiredArgument,
+     nullptr,
+     {},
+     0,
+     eArgTypeModuleUUID,
+     "A module UUID value."},
 };
 
 llvm::ArrayRef<OptionDefinition> OptionGroupUUID::GetDefinitions() {
Index: lldb/test/API/functionalities/completion/TestCompletion.py
===================================================================
--- lldb/test/API/functionalities/completion/TestCompletion.py
+++ lldb/test/API/functionalities/completion/TestCompletion.py
@@ -371,6 +371,11 @@
         self.complete_from_to('target modules load a.ou',
                               ['a.out'])
 
+    def test_target_modules_load_dash_u(self):
+        self.build()
+        target = self.dbg.CreateTarget(self.getBuildArtifact("a.out"))
+        self.complete_from_to('target modules load -u ', [target.GetModuleAtIndex(0).GetUUIDString()])
+
     def test_target_create_dash_co(self):
         """Test that 'target create --co' completes to 'target variable --core '."""
         self.complete_from_to('target create --co', 'target create --core ')