diff --git a/clang-tools-extra/clangd/FindSymbols.cpp b/clang-tools-extra/clangd/FindSymbols.cpp
--- a/clang-tools-extra/clangd/FindSymbols.cpp
+++ b/clang-tools-extra/clangd/FindSymbols.cpp
@@ -197,8 +197,11 @@
         D = TD;
     }
     auto *ND = llvm::dyn_cast<NamedDecl>(D);
-    if (!ND)
+    if (!ND) {
+      // Traverse children of unnamed contexts, e.g. extern "C".
+      traverseChildren(D, Results);
       return;
+    }
     VisitKind Visit = shouldVisit(ND);
     if (Visit == VisitKind::No)
       return;
diff --git a/clang-tools-extra/clangd/unittests/FindSymbolsTests.cpp b/clang-tools-extra/clangd/unittests/FindSymbolsTests.cpp
--- a/clang-tools-extra/clangd/unittests/FindSymbolsTests.cpp
+++ b/clang-tools-extra/clangd/unittests/FindSymbolsTests.cpp
@@ -429,6 +429,26 @@
   EXPECT_THAT(getSymbols(TU.build()), IsEmpty());
 }
 
+TEST(DocumentSymbols, ExternContext) {
+  TestTU TU;
+  TU.Code = R"cpp(
+      extern "C" {
+      void foo();
+      class Foo {};
+      }
+      namespace ns {
+        extern "C" {
+        void bar();
+        class Bar {};
+        }
+      })cpp";
+
+  EXPECT_THAT(getSymbols(TU.build()),
+              ElementsAre(WithName("foo"), WithName("Foo"),
+                          AllOf(WithName("ns"),
+                                Children(WithName("bar"), WithName("Bar")))));
+}
+
 TEST(DocumentSymbols, NoLocals) {
   TestTU TU;
   TU.Code = R"cpp(