diff --git a/app/assets/javascripts/discourse/controllers/composer.js.es6 b/app/assets/javascripts/discourse/controllers/composer.js.es6
index bc1764c4420..3f52b692ecd 100644
--- a/app/assets/javascripts/discourse/controllers/composer.js.es6
+++ b/app/assets/javascripts/discourse/controllers/composer.js.es6
@@ -53,7 +53,8 @@ function loadDraft(store, opts) {
       composerTime: draft.composerTime,
       typingTime: draft.typingTime,
       whisper: draft.whisper,
-      tags: draft.tags
+      tags: draft.tags,
+      noBump: draft.noBump
     });
     return composer;
   }
@@ -194,6 +195,13 @@ export default Ember.Controller.extend({
     }
   },
 
+  @computed("model.noBump")
+  topicBumpText(noBump) {
+    if (noBump) {
+      return I18n.t("composer.no_topic_bump");
+    }
+  },
+
   @computed
   isStaffUser() {
     const currentUser = this.currentUser;
diff --git a/app/assets/javascripts/discourse/models/composer.js.es6 b/app/assets/javascripts/discourse/models/composer.js.es6
index 24f4d8fb794..483bb66eef7 100644
--- a/app/assets/javascripts/discourse/models/composer.js.es6
+++ b/app/assets/javascripts/discourse/models/composer.js.es6
@@ -41,7 +41,8 @@ const CLOSED = "closed",
     composer_open_duration_msecs: "composerTime",
     tags: "tags",
     featured_link: "featuredLink",
-    shared_draft: "sharedDraft"
+    shared_draft: "sharedDraft",
+    no_bump: "noBump"
   },
   _edit_topic_serializer = {
     title: "topic.title",
@@ -71,6 +72,7 @@ const SAVE_ICONS = {
 const Composer = RestModel.extend({
   _categoryId: null,
   unlistTopic: false,
+  noBump: false,
 
   archetypes: function() {
     return this.site.get("archetypes");
@@ -608,7 +610,8 @@ const Composer = RestModel.extend({
       composerTotalOpened: opts.composerTime,
       typingTime: opts.typingTime,
       whisper: opts.whisper,
-      tags: opts.tags
+      tags: opts.tags,
+      noBump: opts.noBump
     });
 
     if (opts.post) {
@@ -714,7 +717,8 @@ const Composer = RestModel.extend({
       typingTime: 0,
       composerOpened: null,
       composerTotalOpened: 0,
-      featuredLink: null
+      featuredLink: null,
+      noBump: false
     });
   },
 
@@ -964,7 +968,8 @@ const Composer = RestModel.extend({
       usernames: this.get("targetUsernames"),
       composerTime: this.get("composerTime"),
       typingTime: this.get("typingTime"),
-      tags: this.get("tags")
+      tags: this.get("tags"),
+      noBump: this.get("noBump")
     };
 
     this.set("draftStatus", I18n.t("composer.saving_draft_tip"));
diff --git a/app/assets/javascripts/discourse/templates/composer.hbs b/app/assets/javascripts/discourse/templates/composer.hbs
index e5e9033e7bd..712dd870188 100644
--- a/app/assets/javascripts/discourse/templates/composer.hbs
+++ b/app/assets/javascripts/discourse/templates/composer.hbs
@@ -21,6 +21,9 @@
                   {{#if whisperOrUnlistTopicText}}
                     <span class='whisper'>({{whisperOrUnlistTopicText}})</span>
                   {{/if}}
+                  {{#if topicBumpText}}
+                    <span class="no-bump">{{topicBumpText}}</span>
+                  {{/if}}
                 {{/unless}}
 
                 {{#if canEdit}}
@@ -120,6 +123,11 @@
                     {{d-icon "eye-slash"}}
                   </span>
                 {{/if}}
+                {{#if topicBumpText}}
+                  <span class="no-bump">
+                    {{d-icon "anchor"}}
+                  </span>
+                {{/if}}
               {{/if}}
 
 
diff --git a/app/assets/javascripts/select-kit/components/composer-actions.js.es6 b/app/assets/javascripts/select-kit/components/composer-actions.js.es6
index 9072e38e926..866a9750edc 100644
--- a/app/assets/javascripts/select-kit/components/composer-actions.js.es6
+++ b/app/assets/javascripts/select-kit/components/composer-actions.js.es6
@@ -192,6 +192,17 @@ export default DropdownSelectBoxComponent.extend({
       });
     }
 
+    const currentUser = Discourse.User.current();
+
+    if (action === REPLY && currentUser && currentUser.get("staff")) {
+      items.push({
+        name: I18n.t("composer.composer_actions.toggle_topic_bump.label"),
+        description: I18n.t("composer.composer_actions.toggle_topic_bump.desc"),
+        icon: "anchor",
+        id: "toggle_topic_bump"
+      });
+    }
+
     return items;
   },
 
@@ -234,6 +245,10 @@ export default DropdownSelectBoxComponent.extend({
     model.toggleProperty("whisper");
   },
 
+  toggleTopicBumpSelected(options, model) {
+    model.toggleProperty("noBump");
+  },
+
   replyToTopicSelected(options) {
     options.action = REPLY;
     options.topic = _topicSnapshot;
diff --git a/app/assets/stylesheets/common/base/compose.scss b/app/assets/stylesheets/common/base/compose.scss
index 1d355ac9e8a..fde1550de0a 100644
--- a/app/assets/stylesheets/common/base/compose.scss
+++ b/app/assets/stylesheets/common/base/compose.scss
@@ -153,6 +153,7 @@
   }
 
   .whisper,
+  .no-bump,
   .display-edit-reason {
     font-style: italic;
   }
diff --git a/app/controllers/posts_controller.rb b/app/controllers/posts_controller.rb
index b4d1eec1f50..9719d769386 100644
--- a/app/controllers/posts_controller.rb
+++ b/app/controllers/posts_controller.rb
@@ -653,6 +653,11 @@ class PostsController < ApplicationController
       result[:is_warning] = false
     end
 
+    if params[:no_bump] == "true"
+      raise Discourse::InvalidParameters.new(:no_bump) unless guardian.can_skip_bump?
+      result[:no_bump] = true
+    end
+
     if params[:shared_draft] == 'true'
       raise Discourse::InvalidParameters.new(:shared_draft) unless guardian.can_create_shared_draft?
 
diff --git a/config/locales/client.en.yml b/config/locales/client.en.yml
index 10c55376670..89ea74359ea 100644
--- a/config/locales/client.en.yml
+++ b/config/locales/client.en.yml
@@ -1318,6 +1318,7 @@ en:
       whisper: "whisper"
       unlist: "unlisted"
       blockquote_text: "Blockquote"
+      no_topic_bump: "(no bump)"
 
       add_warning: "This is an official warning."
       toggle_whisper: "Toggle Whisper"
@@ -1437,6 +1438,9 @@ en:
         shared_draft:
           label: "Shared Draft"
           desc: "Draft a topic that will only be visible to staff"
+        toggle_topic_bump:
+          label: "Toggle topic bump"
+          desc: "Reply without changing the topic's bump date"
 
     notifications:
       tooltip:
diff --git a/lib/guardian/post_guardian.rb b/lib/guardian/post_guardian.rb
index 49a9688c9f8..af56156c023 100644
--- a/lib/guardian/post_guardian.rb
+++ b/lib/guardian/post_guardian.rb
@@ -255,4 +255,8 @@ module PostGuardian
   def can_unhide?(post)
     post.try(:hidden) && is_staff?
   end
+
+  def can_skip_bump?
+    is_staff?
+  end
 end
diff --git a/spec/requests/posts_controller_spec.rb b/spec/requests/posts_controller_spec.rb
index 201b94bcfde..2e0264726f4 100644
--- a/spec/requests/posts_controller_spec.rb
+++ b/spec/requests/posts_controller_spec.rb
@@ -1055,6 +1055,67 @@ describe PostsController do
         end
       end
     end
+
+    context "topic bump" do
+      shared_examples "it works" do
+        let(:original_bumped_at) { 1.day.ago }
+        let!(:topic) { Fabricate(:topic, bumped_at: original_bumped_at) }
+
+        it "should be able to skip topic bumping" do
+          post "/posts.json", params: {
+            raw: 'this is the test content',
+            topic_id: topic.id,
+            no_bump: true
+          }
+
+          expect(response.status).to eq(200)
+          expect(topic.reload.bumped_at).to be_within_one_second_of(original_bumped_at)
+        end
+
+        it "should be able to post with topic bumping" do
+          post "/posts.json", params: {
+            raw: 'this is the test content',
+            topic_id: topic.id
+          }
+
+          expect(response.status).to eq(200)
+          expect(topic.reload.bumped_at).to eq(topic.posts.last.created_at)
+        end
+      end
+
+      context "admins" do
+        before do
+          sign_in(Fabricate(:admin))
+        end
+
+        include_examples "it works"
+      end
+
+      context "moderators" do
+        before do
+          sign_in(Fabricate(:moderator))
+        end
+
+        include_examples "it works"
+      end
+
+      context "users" do
+        let(:topic) { Fabricate(:topic) }
+
+        [:user, :trust_level_4].each do |user|
+          it "will raise an error for #{user}" do
+            sign_in(Fabricate(user))
+            post "/posts.json", params: {
+              raw: 'this is the test content',
+              topic_id: topic.id,
+              no_bump: true
+            }
+            expect(response.status).to eq(400)
+          end
+        end
+      end
+    end
+
   end
 
   describe '#revisions' do
@@ -1524,5 +1585,4 @@ describe PostsController do
       expect(public_post).not_to be_locked
     end
   end
-
 end
diff --git a/test/javascripts/acceptance/composer-actions-test.js.es6 b/test/javascripts/acceptance/composer-actions-test.js.es6
index d6b2bfd1272..7a104fb0a3c 100644
--- a/test/javascripts/acceptance/composer-actions-test.js.es6
+++ b/test/javascripts/acceptance/composer-actions-test.js.es6
@@ -1,4 +1,4 @@
-import { acceptance } from "helpers/qunit-helpers";
+import { acceptance, replaceCurrentUser } from "helpers/qunit-helpers";
 import { _clearSnapshots } from "select-kit/components/composer-actions";
 
 acceptance("Composer Actions", {
@@ -25,7 +25,8 @@ QUnit.test("replying to post", async assert => {
   );
   assert.equal(composerActions.rowByIndex(2).value(), "reply_to_topic");
   assert.equal(composerActions.rowByIndex(3).value(), "toggle_whisper");
-  assert.equal(composerActions.rowByIndex(4).value(), undefined);
+  assert.equal(composerActions.rowByIndex(4).value(), "toggle_topic_bump");
+  assert.equal(composerActions.rowByIndex(5).value(), undefined);
 });
 
 QUnit.test("replying to post - reply_as_private_message", async assert => {
@@ -179,7 +180,8 @@ QUnit.test("interactions", async assert => {
     "reply_as_private_message"
   );
   assert.equal(composerActions.rowByIndex(3).value(), "toggle_whisper");
-  assert.equal(composerActions.rows().length, 4);
+  assert.equal(composerActions.rowByIndex(4).value(), "toggle_topic_bump");
+  assert.equal(composerActions.rows().length, 5);
 
   await composerActions.selectRowByValue("reply_to_post");
   await composerActions.expand();
@@ -199,7 +201,8 @@ QUnit.test("interactions", async assert => {
   );
   assert.equal(composerActions.rowByIndex(2).value(), "reply_to_topic");
   assert.equal(composerActions.rowByIndex(3).value(), "toggle_whisper");
-  assert.equal(composerActions.rows().length, 4);
+  assert.equal(composerActions.rowByIndex(4).value(), "toggle_topic_bump");
+  assert.equal(composerActions.rows().length, 5);
 
   await composerActions.selectRowByValue("reply_as_new_topic");
   await composerActions.expand();
@@ -243,3 +246,62 @@ QUnit.test("interactions", async assert => {
   assert.equal(composerActions.rowByIndex(2).value(), "reply_to_topic");
   assert.equal(composerActions.rows().length, 3);
 });
+
+QUnit.test("replying to post - toggle_topic_bump", async assert => {
+  const composerActions = selectKit(".composer-actions");
+
+  await visit("/t/internationalization-localization/280");
+  await click("article#post_3 button.reply");
+
+  assert.ok(
+    find(".composer-fields .no-bump").length === 0,
+    "no-bump text is not visible"
+  );
+
+  await composerActions.expand();
+  await composerActions.selectRowByValue("toggle_topic_bump");
+
+  assert.equal(
+    find(".composer-fields .no-bump").text(),
+    I18n.t("composer.no_topic_bump"),
+    "no-bump text is visible"
+  );
+
+  await composerActions.expand();
+  await composerActions.selectRowByValue("toggle_topic_bump");
+
+  assert.ok(
+    find(".composer-fields .no-bump").length === 0,
+    "no-bump text is not visible"
+  );
+});
+
+QUnit.test("replying to post as staff", async assert => {
+  const composerActions = selectKit(".composer-actions");
+
+  replaceCurrentUser({ staff: true, admin: false });
+  await visit("/t/internationalization-localization/280");
+  await click("article#post_3 button.reply");
+  await composerActions.expand();
+
+  assert.equal(composerActions.rows().length, 5);
+  assert.equal(composerActions.rowByIndex(4).value(), "toggle_topic_bump");
+});
+
+QUnit.test("replying to post as regular user", async assert => {
+  const composerActions = selectKit(".composer-actions");
+
+  replaceCurrentUser({ staff: false, admin: false });
+  await visit("/t/internationalization-localization/280");
+  await click("article#post_3 button.reply");
+  await composerActions.expand();
+
+  assert.equal(composerActions.rows().length, 3);
+  Array.from(composerActions.rows()).forEach(row => {
+    assert.notEqual(
+      row.value,
+      "toggle_topic_bump",
+      "toggle button is not visible"
+    );
+  });
+});