diff --git a/app/controllers/forum_topics_controller.rb b/app/controllers/forum_topics_controller.rb
index b91ac50fe..404ed6a22 100644
--- a/app/controllers/forum_topics_controller.rb
+++ b/app/controllers/forum_topics_controller.rb
@@ -2,10 +2,9 @@ class ForumTopicsController < ApplicationController
   respond_to :html, :xml, :json
   respond_to :atom, only: [:index, :show]
   before_action :member_only, :except => [:index, :show]
-  before_action :moderator_only, :only => [:new_merge, :create_merge]
   before_action :normalize_search, :only => :index
-  before_action :load_topic, :only => [:edit, :show, :update, :destroy, :undelete, :new_merge, :create_merge]
-  before_action :check_min_level, :only => [:show, :edit, :update, :new_merge, :create_merge, :destroy, :undelete]
+  before_action :load_topic, :only => [:edit, :show, :update, :destroy, :undelete]
+  before_action :check_min_level, :only => [:show, :edit, :update, :destroy, :undelete]
   skip_before_action :api_check
 
   def new
@@ -79,15 +78,6 @@ class ForumTopicsController < ApplicationController
     redirect_to forum_topics_path, :notice => "All topics marked as read"
   end
 
-  def new_merge
-  end
-
-  def create_merge
-    @merged_topic = ForumTopic.find(params[:merged_id])
-    @forum_topic.merge(@merged_topic)
-    redirect_to forum_topic_path(@merged_topic)
-  end
-
   private
 
   def normalize_search
diff --git a/app/models/forum_topic.rb b/app/models/forum_topic.rb
index c2666fe7e..8d35b984c 100644
--- a/app/models/forum_topic.rb
+++ b/app/models/forum_topic.rb
@@ -157,12 +157,6 @@ class ForumTopic < ApplicationRecord
     (response_count / Danbooru.config.posts_per_page.to_f).ceil
   end
 
-  def merge(topic)
-    ForumPost.where(:id => self.posts.map(&:id)).update_all(:topic_id => topic.id)
-    topic.update(response_count: topic.response_count + self.posts.length, updater_id: CurrentUser.id)
-    self.update_columns(:response_count => 0, :is_deleted => true, :updater_id => CurrentUser.id)
-  end
-
   def delete!
     update(is_deleted: true)
   end
diff --git a/app/views/forum_topics/_secondary_links.html.erb b/app/views/forum_topics/_secondary_links.html.erb
index 715f0b694..135b9edf4 100644
--- a/app/views/forum_topics/_secondary_links.html.erb
+++ b/app/views/forum_topics/_secondary_links.html.erb
@@ -36,7 +36,6 @@
         <% else %>
           <%= subnav_link_to "Sticky", forum_topic_path(@forum_topic, :forum_topic => {:is_sticky => true}), :method => :put, :data => {:confirm => "Are you sure you want to sticky this forum topic?"} %>
         <% end %>
-        <%= subnav_link_to "Merge", new_merge_forum_topic_path(@forum_topic) %>
       <% end %>
     <% end %>
   <% end %>
diff --git a/app/views/forum_topics/new_merge.html.erb b/app/views/forum_topics/new_merge.html.erb
deleted file mode 100644
index 5bee2080e..000000000
--- a/app/views/forum_topics/new_merge.html.erb
+++ /dev/null
@@ -1,23 +0,0 @@
-<div id="c-forum-topics">
-  <div id="a-merge">
-    <h1>Merge Forum Topic</h1>
-
-    <p>Merge <strong><%= @forum_topic.title %></strong> into:</p>
-
-    <%= form_tag(create_merge_forum_topic_path(@forum_topic)) do %>
-      <div>
-        <label>
-          Forum Topic ID:
-          <%= text_field_tag :merged_id %>
-        </label>
-      </div>
-      <%= submit_tag "Merge" %>
-    <% end %>
-  </div>
-</div>
-
-<%= render "secondary_links" %>
-
-<% content_for(:page_title) do %>
-  Merge Forum Topic - <%= Danbooru.config.app_name %>
-<% end %>
diff --git a/config/routes.rb b/config/routes.rb
index 84b1af4dd..8864fd385 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -140,8 +140,6 @@ Rails.application.routes.draw do
   resources :forum_topics do
     member do
       post :undelete
-      get :new_merge
-      post :create_merge
     end
     collection do
       post :mark_all_as_read
diff --git a/test/unit/forum_topic_test.rb b/test/unit/forum_topic_test.rb
index 46fd4c97d..1dc61b35c 100644
--- a/test/unit/forum_topic_test.rb
+++ b/test/unit/forum_topic_test.rb
@@ -111,19 +111,6 @@ class ForumTopicTest < ActiveSupport::TestCase
       end
     end
 
-    context "#merge" do
-      setup do
-        @topic2 = create(:forum_topic, title: "yyy", creator: @user)
-        FactoryBot.create(:forum_post, :topic_id => @topic.id, :body => "xxx")
-        FactoryBot.create(:forum_post, :topic_id => @topic2.id, :body => "xxx")
-      end
-
-      should "merge all the posts in one topic into the other" do
-        @topic.merge(@topic2)
-        assert_equal(2, @topic2.posts.count)
-      end
-    end
-
     context "constructed with nested attributes for its original post" do
       should "create a matching forum post" do
         assert_difference(["ForumTopic.count", "ForumPost.count"], 1) do