diff --git a/app/assets/javascripts/vue_merge_request_widget/stores/mr_widget_store.js b/app/assets/javascripts/vue_merge_request_widget/stores/mr_widget_store.js
index 72a13108404..fddafb0ddfa 100644
--- a/app/assets/javascripts/vue_merge_request_widget/stores/mr_widget_store.js
+++ b/app/assets/javascripts/vue_merge_request_widget/stores/mr_widget_store.js
@@ -65,7 +65,7 @@ export default class MergeRequestStore {
     this.mergeCheckPath = data.merge_check_path;
     this.mergeActionsContentPath = data.commit_change_content_path;
     this.isRemovingSourceBranch = this.isRemovingSourceBranch || false;
-    this.isOpen = data.state === 'opened' || data.state === 'reopened' || false;
+    this.isOpen = data.state === 'opened';
     this.hasMergeableDiscussionsState = data.mergeable_discussions_state === false;
     this.canRemoveSourceBranch = currentUser.can_remove_source_branch || false;
     this.canMerge = !!data.merge_path;
diff --git a/app/finders/issuable_finder.rb b/app/finders/issuable_finder.rb
index 6fe17a2b99d..08a843ada97 100644
--- a/app/finders/issuable_finder.rb
+++ b/app/finders/issuable_finder.rb
@@ -81,7 +81,6 @@ class IssuableFinder
     end
 
     counts[:all] = counts.values.sum
-    counts[:opened] += counts[:reopened]
 
     counts
   end
diff --git a/app/models/concerns/issuable.rb b/app/models/concerns/issuable.rb
index 13fe9d09c69..935ffe343ff 100644
--- a/app/models/concerns/issuable.rb
+++ b/app/models/concerns/issuable.rb
@@ -71,9 +71,8 @@ module Issuable
     scope :of_projects, ->(ids) { where(project_id: ids) }
     scope :of_milestones, ->(ids) { where(milestone_id: ids) }
     scope :with_milestone, ->(title) { left_joins_milestones.where(milestones: { title: title }) }
-    scope :opened, -> { with_state(:opened, :reopened) }
+    scope :opened, -> { with_state(:opened) }
     scope :only_opened, -> { with_state(:opened) }
-    scope :only_reopened, -> { with_state(:reopened) }
     scope :closed, -> { with_state(:closed) }
 
     scope :left_joins_milestones,    -> { joins("LEFT OUTER JOIN milestones ON #{table_name}.milestone_id = milestones.id") }
@@ -234,7 +233,7 @@ module Issuable
   end
 
   def open?
-    opened? || reopened?
+    opened?
   end
 
   def user_notes_count
diff --git a/app/models/issue.rb b/app/models/issue.rb
index 400bb55d2f0..1c948c8957e 100644
--- a/app/models/issue.rb
+++ b/app/models/issue.rb
@@ -62,15 +62,14 @@ class Issue < ActiveRecord::Base
 
   state_machine :state, initial: :opened do
     event :close do
-      transition [:reopened, :opened] => :closed
+      transition [:opened] => :closed
     end
 
     event :reopen do
-      transition closed: :reopened
+      transition closed: :opened
     end
 
     state :opened
-    state :reopened
     state :closed
 
     before_transition any => :closed do |issue|
diff --git a/app/models/merge_request.rb b/app/models/merge_request.rb
index a910099b4c1..81e0776e79c 100644
--- a/app/models/merge_request.rb
+++ b/app/models/merge_request.rb
@@ -42,23 +42,23 @@ class MergeRequest < ActiveRecord::Base
 
   state_machine :state, initial: :opened do
     event :close do
-      transition [:reopened, :opened] => :closed
+      transition [:opened] => :closed
     end
 
     event :mark_as_merged do
-      transition [:reopened, :opened, :locked] => :merged
+      transition [:opened, :locked] => :merged
     end
 
     event :reopen do
-      transition closed: :reopened
+      transition closed: :opened
     end
 
     event :lock_mr do
-      transition [:reopened, :opened] => :locked
+      transition [:opened] => :locked
     end
 
     event :unlock_mr do
-      transition locked: :reopened
+      transition locked: :opened
     end
 
     after_transition any => :locked do |merge_request, transition|
@@ -72,7 +72,6 @@ class MergeRequest < ActiveRecord::Base
     end
 
     state :opened
-    state :reopened
     state :closed
     state :merged
     state :locked
@@ -368,7 +367,7 @@ class MergeRequest < ActiveRecord::Base
       errors.add :branch_conflict, "You can not use same project/branch for source and target"
     end
 
-    if opened? || reopened?
+    if opened?
       similar_mrs = self.target_project.merge_requests.where(source_branch: source_branch, target_branch: target_branch, source_project_id: source_project.try(:id)).opened
       similar_mrs = similar_mrs.where('id not in (?)', self.id) if self.id
       if similar_mrs.any?
diff --git a/app/models/project_services/drone_ci_service.rb b/app/models/project_services/drone_ci_service.rb
index f6cade9c290..c93f1632652 100644
--- a/app/models/project_services/drone_ci_service.rb
+++ b/app/models/project_services/drone_ci_service.rb
@@ -114,7 +114,7 @@ class DroneCiService < CiService
   end
 
   def merge_request_valid?(data)
-    %w(opened reopened).include?(data[:object_attributes][:state]) &&
+    data[:object_attributes][:state] == 'opened' &&
       data[:object_attributes][:merge_status] == 'unchecked'
   end
 end
diff --git a/app/services/issues/reopen_service.rb b/app/services/issues/reopen_service.rb
index 73b2e85cba3..35de4337b15 100644
--- a/app/services/issues/reopen_service.rb
+++ b/app/services/issues/reopen_service.rb
@@ -5,7 +5,7 @@ module Issues
 
       if issue.reopen
         event_service.reopen_issue(issue, current_user)
-        create_note(issue)
+        create_note(issue, 'reopened')
         notification_service.reopen_issue(issue, current_user)
         execute_hooks(issue, 'reopen')
         invalidate_cache_counts(issue, users: issue.assignees)
@@ -16,8 +16,8 @@ module Issues
 
     private
 
-    def create_note(issue)
-      SystemNoteService.change_status(issue, issue.project, current_user, issue.state, nil)
+    def create_note(issue, state = issue.state)
+      SystemNoteService.change_status(issue, issue.project, current_user, state, nil)
     end
   end
 end
diff --git a/app/services/merge_requests/base_service.rb b/app/services/merge_requests/base_service.rb
index 3542a41ac83..35ccff26262 100644
--- a/app/services/merge_requests/base_service.rb
+++ b/app/services/merge_requests/base_service.rb
@@ -1,7 +1,7 @@
 module MergeRequests
   class BaseService < ::IssuableBaseService
-    def create_note(merge_request)
-      SystemNoteService.change_status(merge_request, merge_request.target_project, current_user, merge_request.state, nil)
+    def create_note(merge_request, state = merge_request.state)
+      SystemNoteService.change_status(merge_request, merge_request.target_project, current_user, state, nil)
     end
 
     def create_title_change_note(issuable, old_title)
@@ -44,7 +44,7 @@ module MergeRequests
     end
 
     # Returns all origin and fork merge requests from `@project` satisfying passed arguments.
-    def merge_requests_for(source_branch, mr_states: [:opened, :reopened])
+    def merge_requests_for(source_branch, mr_states: [:opened])
       MergeRequest
         .with_state(mr_states)
         .where(source_branch: source_branch, source_project_id: @project.id)
diff --git a/app/services/merge_requests/reopen_service.rb b/app/services/merge_requests/reopen_service.rb
index 52f6d511f98..b9c65be36ec 100644
--- a/app/services/merge_requests/reopen_service.rb
+++ b/app/services/merge_requests/reopen_service.rb
@@ -5,7 +5,7 @@ module MergeRequests
 
       if merge_request.reopen
         event_service.reopen_mr(merge_request, current_user)
-        create_note(merge_request)
+        create_note(merge_request, 'reopened')
         notification_service.reopen_mr(merge_request, current_user)
         execute_hooks(merge_request, 'reopen')
         merge_request.reload_diff(current_user)
diff --git a/changelogs/unreleased/merge-issuable-reopened-into-opened-state.yml b/changelogs/unreleased/merge-issuable-reopened-into-opened-state.yml
new file mode 100644
index 00000000000..5d7af8971e5
--- /dev/null
+++ b/changelogs/unreleased/merge-issuable-reopened-into-opened-state.yml
@@ -0,0 +1,4 @@
+---
+title: Merge issuable "reopened" state into "opened"
+merge_request:
+author:
diff --git a/db/post_migrate/20170719150301_merge_issuable_reopened_into_opened_state.rb b/db/post_migrate/20170719150301_merge_issuable_reopened_into_opened_state.rb
new file mode 100644
index 00000000000..acc0fc7a0ac
--- /dev/null
+++ b/db/post_migrate/20170719150301_merge_issuable_reopened_into_opened_state.rb
@@ -0,0 +1,32 @@
+# See http://doc.gitlab.com/ce/development/migration_style_guide.html
+# for more information on how to write migrations for GitLab.
+
+class MergeIssuableReopenedIntoOpenedState < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  class Issue < ActiveRecord::Base
+    self.table_name = 'issues'
+
+    include EachBatch
+  end
+
+  class MergeRequest < ActiveRecord::Base
+    self.table_name = 'merge_requests'
+
+    include EachBatch
+  end
+
+  def up
+    [Issue, MergeRequest].each do |model|
+      say "Changing #{model.table_name}.state from 'reopened' to 'opened'"
+
+      model.where(state: 'reopened').each_batch do |batch|
+        batch.update_all(state: 'opened')
+      end
+    end
+  end
+end
diff --git a/spec/factories/issues.rb b/spec/factories/issues.rb
index f1fd1fd7f73..a16695cb7c1 100644
--- a/spec/factories/issues.rb
+++ b/spec/factories/issues.rb
@@ -16,12 +16,8 @@ FactoryGirl.define do
       state :closed
     end
 
-    trait :reopened do
-      state :reopened
-    end
-
     factory :closed_issue, traits: [:closed]
-    factory :reopened_issue, traits: [:reopened]
+    factory :reopened_issue, traits: [:opened]
 
     factory :labeled_issue do
       transient do
diff --git a/spec/factories/merge_requests.rb b/spec/factories/merge_requests.rb
index 253a025af48..1bc530d06db 100644
--- a/spec/factories/merge_requests.rb
+++ b/spec/factories/merge_requests.rb
@@ -44,10 +44,6 @@ FactoryGirl.define do
       state :opened
     end
 
-    trait :reopened do
-      state :reopened
-    end
-
     trait :locked do
       state :locked
     end
@@ -74,7 +70,7 @@ FactoryGirl.define do
 
     factory :merged_merge_request, traits: [:merged]
     factory :closed_merge_request, traits: [:closed]
-    factory :reopened_merge_request, traits: [:reopened]
+    factory :reopened_merge_request, traits: [:opened]
     factory :merge_request_with_diffs, traits: [:with_diffs]
     factory :merge_request_with_diff_notes do
       after(:create) do |mr|
diff --git a/spec/lib/banzai/filter/issuable_state_filter_spec.rb b/spec/lib/banzai/filter/issuable_state_filter_spec.rb
index 7cf2f4282f8..bc7cae1df8d 100644
--- a/spec/lib/banzai/filter/issuable_state_filter_spec.rb
+++ b/spec/lib/banzai/filter/issuable_state_filter_spec.rb
@@ -107,14 +107,6 @@ describe Banzai::Filter::IssuableStateFilter do
       expect(doc.css('a').last.text).to eq(issue.to_reference)
     end
 
-    it 'ignores reopened issue references' do
-      issue = create_issue(:reopened)
-      link = create_link(issue.to_reference, issue: issue.id, reference_type: 'issue')
-      doc = filter(link, context)
-
-      expect(doc.css('a').last.text).to eq(issue.to_reference)
-    end
-
     it 'appends state to closed issue references' do
       link = create_link(closed_issue.to_reference, issue: closed_issue.id, reference_type: 'issue')
       doc = filter(link, context)
@@ -139,7 +131,7 @@ describe Banzai::Filter::IssuableStateFilter do
     end
 
     it 'ignores reopened merge request references' do
-      merge_request = create_merge_request(:reopened)
+      merge_request = create_merge_request(:opened)
 
       link = create_link(
         merge_request.to_reference,
diff --git a/spec/requests/api/issues_spec.rb b/spec/requests/api/issues_spec.rb
index 33cea02153e..2c44be4e447 100644
--- a/spec/requests/api/issues_spec.rb
+++ b/spec/requests/api/issues_spec.rb
@@ -1259,7 +1259,7 @@ describe API::Issues do
       put api("/projects/#{project.id}/issues/#{closed_issue.iid}", user), state_event: 'reopen'
 
       expect(response).to have_http_status(200)
-      expect(json_response['state']).to eq 'reopened'
+      expect(json_response['state']).to eq 'opened'
     end
 
     context 'when an admin or owner makes the request' do
diff --git a/spec/requests/api/v3/issues_spec.rb b/spec/requests/api/v3/issues_spec.rb
index cc81922697a..4dff09b6df8 100644
--- a/spec/requests/api/v3/issues_spec.rb
+++ b/spec/requests/api/v3/issues_spec.rb
@@ -1114,7 +1114,7 @@ describe API::V3::Issues do
       put v3_api("/projects/#{project.id}/issues/#{closed_issue.id}", user), state_event: 'reopen'
 
       expect(response).to have_http_status(200)
-      expect(json_response['state']).to eq 'reopened'
+      expect(json_response['state']).to eq 'opened'
     end
 
     context 'when an admin or owner makes the request' do
diff --git a/spec/services/boards/issues/list_service_spec.rb b/spec/services/boards/issues/list_service_spec.rb
index 2c293088097..b1b5d807a78 100644
--- a/spec/services/boards/issues/list_service_spec.rb
+++ b/spec/services/boards/issues/list_service_spec.rb
@@ -20,7 +20,7 @@ describe Boards::Issues::ListService do
 
     let!(:opened_issue1) { create(:labeled_issue, project: project, labels: [bug]) }
     let!(:opened_issue2) { create(:labeled_issue, project: project, labels: [p2]) }
-    let!(:reopened_issue1) { create(:issue, :reopened, project: project) }
+    let!(:reopened_issue1) { create(:issue, :opened, project: project) }
 
     let!(:list1_issue1) { create(:labeled_issue, project: project, labels: [p2, development]) }
     let!(:list1_issue2) { create(:labeled_issue, project: project, labels: [development]) }
diff --git a/spec/services/boards/issues/move_service_spec.rb b/spec/services/boards/issues/move_service_spec.rb
index 7dd1a601700..15a32350ae2 100644
--- a/spec/services/boards/issues/move_service_spec.rb
+++ b/spec/services/boards/issues/move_service_spec.rb
@@ -73,7 +73,7 @@ describe Boards::Issues::MoveService do
         issue.reload
 
         expect(issue.labels).to contain_exactly(bug, testing)
-        expect(issue).to be_reopened
+        expect(issue).to be_opened
       end
     end
 
diff --git a/spec/services/delete_merged_branches_service_spec.rb b/spec/services/delete_merged_branches_service_spec.rb
index 954c5d3ab73..4b872d667cf 100644
--- a/spec/services/delete_merged_branches_service_spec.rb
+++ b/spec/services/delete_merged_branches_service_spec.rb
@@ -43,7 +43,7 @@ describe DeleteMergedBranchesService do
     context 'open merge requests' do
       it 'does not delete branches from open merge requests' do
         fork_link = create(:forked_project_link, forked_from_project: project)
-        create(:merge_request, :reopened, source_project: project, target_project: project, source_branch: 'branch-merged', target_branch: 'master')
+        create(:merge_request, :opened, source_project: project, target_project: project, source_branch: 'branch-merged', target_branch: 'master')
         create(:merge_request, :opened, source_project: fork_link.forked_to_project, target_project: project, target_branch: 'improve/awesome', source_branch: 'master')
 
         service.execute
diff --git a/spec/services/merge_requests/get_urls_service_spec.rb b/spec/services/merge_requests/get_urls_service_spec.rb
index 4a7d8ab4c6c..672d86e4028 100644
--- a/spec/services/merge_requests/get_urls_service_spec.rb
+++ b/spec/services/merge_requests/get_urls_service_spec.rb
@@ -78,7 +78,7 @@ describe MergeRequests::GetUrlsService do
     end
 
     context 'pushing to existing branch and merge request is reopened' do
-      let!(:merge_request) { create(:merge_request, :reopened, source_project: project, source_branch: source_branch) }
+      let!(:merge_request) { create(:merge_request, :opened, source_project: project, source_branch: source_branch) }
       let(:changes) { existing_branch_changes }
       it_behaves_like 'show_merge_request_url'
     end
diff --git a/spec/services/merge_requests/reopen_service_spec.rb b/spec/services/merge_requests/reopen_service_spec.rb
index ce1e9f2ff45..f02af0c582e 100644
--- a/spec/services/merge_requests/reopen_service_spec.rb
+++ b/spec/services/merge_requests/reopen_service_spec.rb
@@ -28,7 +28,7 @@ describe MergeRequests::ReopenService do
       end
 
       it { expect(merge_request).to be_valid }
-      it { expect(merge_request).to be_reopened }
+      it { expect(merge_request).to be_opened }
 
       it 'executes hooks with reopen action' do
         expect(service).to have_received(:execute_hooks)