diff --git a/src/nix/profile.cc b/src/nix/profile.cc
index 53fac7d2454..25a4110b89c 100644
--- a/src/nix/profile.cc
+++ b/src/nix/profile.cc
@@ -561,10 +561,24 @@ struct AllMatcher final : public Matcher
 
 AllMatcher all;
 
-class MixProfileElementMatchers : virtual Args, virtual StoreCommand
+class MixProfileElementMatchers : virtual Args, virtual StoreCommand, public virtual MixDefaultProfile
 {
     std::vector<ref<Matcher>> _matchers;
 
+    void completeProfileElements(AddCompletions & completions, std::string_view prefix)
+    {
+        auto * evalCmd = dynamic_cast<EvalCommand *>(this);
+        if (!evalCmd)
+            return;
+
+        auto evalState = evalCmd->getEvalState();
+        ProfileManifest manifest(*evalState, *profile);
+
+        for (auto & [name, element] : manifest.elements)
+            if (name.starts_with(prefix))
+                completions.add(name, element.identifier());
+    }
+
 public:
 
     MixProfileElementMatchers()
@@ -595,6 +609,9 @@ class MixProfileElementMatchers : virtual Args, virtual StoreCommand
                          _matchers.push_back(make_ref<NameMatcher>(arg));
                      }
                  }
+             }},
+             .completer = {[this](AddCompletions & completions, size_t, std::string_view prefix) {
+                 completeProfileElements(completions, prefix);
              }}});
     }
 
@@ -635,7 +652,7 @@ class MixProfileElementMatchers : virtual Args, virtual StoreCommand
     }
 };
 
-struct CmdProfileRemove : virtual EvalCommand, MixDefaultProfile, MixProfileElementMatchers
+struct CmdProfileRemove : virtual EvalCommand, MixProfileElementMatchers
 {
     std::string description() override
     {
@@ -675,7 +692,7 @@ struct CmdProfileRemove : virtual EvalCommand, MixDefaultProfile, MixProfileElem
     }
 };
 
-struct CmdProfileUpgrade : virtual SourceExprCommand, MixDefaultProfile, MixProfileElementMatchers
+struct CmdProfileUpgrade : virtual SourceExprCommand, MixProfileElementMatchers
 {
     std::string description() override
     {
diff --git a/tests/functional/nix-profile.sh b/tests/functional/nix-profile.sh
index a27a32c6efd..df9a8e0f4b6 100755
--- a/tests/functional/nix-profile.sh
+++ b/tests/functional/nix-profile.sh
@@ -78,6 +78,25 @@ unset NIX_CONFIG
 # Test conflicting package add.
 nix profile add "$flake1Dir" 2>&1 | grep "warning: 'flake1' is already added"
 
+# Test tab completion of profile elements
+# The profile should have 'foo' and 'flake1' installed at this point
+completion_output=$(NIX_GET_COMPLETIONS=3 nix profile remove '' 2>&1)
+echo "$completion_output" | grep -q "^normal$"
+echo "$completion_output" | grep -q "^flake1"
+echo "$completion_output" | grep -q "^foo"
+
+# Test prefix matching - should only complete 'flake1' when prefix is 'fl'
+completion_output=$(NIX_GET_COMPLETIONS=3 nix profile remove 'fl' 2>&1)
+echo "$completion_output" | grep -q "^normal$"
+echo "$completion_output" | grep -q "^flake1"
+echo "$completion_output" | grepQuietInverse "^foo"
+
+# Test completion with upgrade command
+completion_output=$(NIX_GET_COMPLETIONS=3 nix profile upgrade '' 2>&1)
+echo "$completion_output" | grep -q "^normal$"
+echo "$completion_output" | grep -q "^flake1"
+echo "$completion_output" | grep -q "^foo"
+
 # Test upgrading a package.
 printf NixOS > "$flake1Dir"/who
 printf 2.0 > "$flake1Dir"/version