diff --git a/lib/summarization/strategies/topic_summary.rb b/lib/summarization/strategies/topic_summary.rb
index 4dfca68c5..36a304963 100644
--- a/lib/summarization/strategies/topic_summary.rb
+++ b/lib/summarization/strategies/topic_summary.rb
@@ -13,22 +13,28 @@ def highest_target_number
         end
 
         def targets_data
-          posts_data =
-            (target.has_summary? ? best_replies : pick_selection).pluck(
-              :post_number,
-              :raw,
-              :username,
-              :last_version_at,
-            )
-
-          posts_data.reduce([]) do |memo, (pn, raw, username, last_version_at)|
+          post_attributes = %i[post_number raw username last_version_at]
+          if SiteSetting.enable_names && !SiteSetting.prioritize_username_in_ux
+            post_attributes.push(:name)
+          end
+
+          posts_data = (target.has_summary? ? best_replies : pick_selection).pluck(post_attributes)
+
+          posts_data.reduce([]) do |memo, (pn, raw, username, last_version_at, name)|
             raw_text = raw
 
             if pn == 1 && target.topic_embed&.embed_content_cache.present?
               raw_text = target.topic_embed&.embed_content_cache
             end
 
-            memo << { poster: username, id: pn, text: raw_text, last_version_at: last_version_at }
+            display_name = name.presence || username
+
+            memo << {
+              poster: display_name,
+              id: pn,
+              text: raw_text,
+              last_version_at: last_version_at,
+            }
           end
         end
 
diff --git a/spec/lib/modules/summarization/strategies/topic_summary_spec.rb b/spec/lib/modules/summarization/strategies/topic_summary_spec.rb
index 93f2c4c2c..561c6270a 100644
--- a/spec/lib/modules/summarization/strategies/topic_summary_spec.rb
+++ b/spec/lib/modules/summarization/strategies/topic_summary_spec.rb
@@ -61,5 +61,37 @@
         expect(op_content).to include(topic_embed.embed_content_cache)
       end
     end
+
+    context "when enable_names enabled and prioritize_username_in_ux disabled" do
+      fab!(:user) { Fabricate(:user, name: "test") }
+
+      it "includes the name" do
+        SiteSetting.enable_names = true
+        SiteSetting.prioritize_username_in_ux = false
+
+        post_1.update!(user: user)
+
+        content = topic_summary.targets_data
+        poster_name = content.first[:poster]
+
+        expect(poster_name).to eq("test")
+      end
+    end
+
+    context "when enable_names enabled and prioritize_username_in_ux enabled" do
+      fab!(:user) { Fabricate(:user, username: "test") }
+
+      it "includes the username" do
+        SiteSetting.enable_names = true
+        SiteSetting.prioritize_username_in_ux = true
+
+        post_1.update!(user: user)
+
+        content = topic_summary.targets_data
+        poster_name = content.first[:poster]
+
+        expect(poster_name).to eq("test")
+      end
+    end
   end
 end