diff --git a/app/controllers/discourse_assign/assign_controller.rb b/app/controllers/discourse_assign/assign_controller.rb
index d49260a..8e3efaa 100644
--- a/app/controllers/discourse_assign/assign_controller.rb
+++ b/app/controllers/discourse_assign/assign_controller.rb
@@ -48,6 +48,7 @@ module DiscourseAssign
       target_type = params.require(:target_type)
       username = params.permit(:username)['username']
       group_name = params.permit(:group_name)['group_name']
+      priority = (params.permit(:priority)['priority'])&.to_i
 
       assign_to = username.present? ? User.find_by(username_lower: username.downcase) : Group.where("LOWER(name) = ?", group_name.downcase).first
 
@@ -56,7 +57,7 @@ module DiscourseAssign
       target = target_type.constantize.where(id: target_id).first
       raise Discourse::NotFound unless target
 
-      assign = Assigner.new(target, current_user).assign(assign_to)
+      assign = Assigner.new(target, current_user).assign(assign_to, priority: priority)
 
       if assign[:success]
         render json: success_json
diff --git a/app/models/assignment.rb b/app/models/assignment.rb
index 1563ab6..b6e3f0b 100644
--- a/app/models/assignment.rb
+++ b/app/models/assignment.rb
@@ -8,6 +8,13 @@ class Assignment < ActiveRecord::Base
   belongs_to :assigned_by_user, class_name: "User"
   belongs_to :target, polymorphic: true
 
+  enum priority: {
+    low: 4,
+    medium: 3,
+    high: 2,
+    urgent: 1,
+  }, _prefix: true
+
   scope :joins_with_topics, -> { joins("INNER JOIN topics ON topics.id = assignments.target_id AND assignments.target_type = 'Topic' AND topics.deleted_at IS NULL") }
 
   def self.valid_type?(type)
@@ -37,6 +44,7 @@ end
 #  target_id           :integer          not null
 #  target_type         :string           not null
 #  active              :boolean          default(TRUE)
+#  priority            :integer
 #
 # Indexes
 #
diff --git a/lib/assigner.rb b/lib/assigner.rb
index 73b9838..0801d1f 100644
--- a/lib/assigner.rb
+++ b/lib/assigner.rb
@@ -199,7 +199,7 @@ class ::Assigner
     end
   end
 
-  def assign(assign_to, silent: false)
+  def assign(assign_to, priority: nil, silent: false)
     type = assign_to.is_a?(User) ? "User" : "Group"
 
     forbidden_reason = forbidden_reasons(assign_to: assign_to, type: type)
@@ -211,7 +211,7 @@ class ::Assigner
 
     @target.assignment&.destroy!
 
-    assignment = @target.create_assignment!(assigned_to_id: assign_to.id, assigned_to_type: type, assigned_by_user_id: @assigned_by.id, topic_id: topic.id)
+    assignment = @target.create_assignment!(assigned_to_id: assign_to.id, assigned_to_type: type, assigned_by_user_id: @assigned_by.id, topic_id: topic.id, priority: priority)
 
     first_post.publish_change_to_clients!(:revised, reload_topic: true)
 
diff --git a/plugin.rb b/plugin.rb
index c1bac32..98761f6 100644
--- a/plugin.rb
+++ b/plugin.rb
@@ -484,6 +484,14 @@ after_initialize do
     (SiteSetting.assigns_public || scope.can_assign?) && object.topic.indirectly_assigned_to.present?
   end
 
+  add_to_serializer(:topic_view, :assignment_priority, false) do
+    Assignment.priorities[object.topic.assignment.priority]
+  end
+
+  add_to_serializer(:topic_view, :include_assignment_priority?, false) do
+    (SiteSetting.assigns_public || scope.can_assign?) && object.topic.assignment.present?
+  end
+
   # SuggestedTopic serializer
   add_to_serializer(:suggested_topic, :assigned_to_user, false) do
     DiscourseAssign::Helpers.build_assigned_to_user(object.assigned_to, object)
@@ -631,6 +639,14 @@ after_initialize do
     (SiteSetting.assigns_public || scope.can_assign?) && object.assignment&.assigned_to&.is_a?(Group) && object.assignment.active
   end
 
+  add_to_serializer(:post, :assignment_priority, false) do
+    Assignment.priorities[object.assignment.priority]
+  end
+
+  add_to_serializer(:post, :include_assignment_priority?, false) do
+    (SiteSetting.assigns_public || scope.can_assign?) && object.assignment.present?
+  end
+
   # CurrentUser serializer
   add_to_serializer(:current_user, :can_assign) do
     object.can_assign?
diff --git a/spec/lib/assigner_spec.rb b/spec/lib/assigner_spec.rb
index 4db6669..87ca08b 100644
--- a/spec/lib/assigner_spec.rb
+++ b/spec/lib/assigner_spec.rb
@@ -43,6 +43,12 @@ RSpec.describe Assigner do
         .to eq(TopicUser.notification_levels[:tracking])
     end
 
+    it "can assign with priority" do
+      assigner.assign(moderator, priority: 2)
+
+      expect(topic.assignment.priority_high?).to eq true
+    end
+
     it 'does not update notification level if already watching' do
       TopicUser.change(moderator.id, topic.id,
         notification_level: TopicUser.notification_levels[:watching]
diff --git a/spec/requests/assign_controller_spec.rb b/spec/requests/assign_controller_spec.rb
index e563adb..2835269 100644
--- a/spec/requests/assign_controller_spec.rb
+++ b/spec/requests/assign_controller_spec.rb
@@ -116,6 +116,15 @@ RSpec.describe DiscourseAssign::AssignController do
       expect(post.topic.reload.assignment.assigned_to_id).to eq(user2.id)
     end
 
+    it 'assigns topic with priority to a user' do
+      put '/assign/assign.json', params: {
+        target_id: post.topic_id, target_type: 'Topic', username: user2.username, priority: 4
+      }
+
+      topicPriority = post.topic.reload.assignment.priority
+      expect(Assignment.priorities[topicPriority]).to eq(4)
+    end
+
     it 'assigns topic to a group' do
       put '/assign/assign.json', params: {
         target_id: post.topic_id, target_type: 'Topic', group_name: assign_allowed_group.name
diff --git a/spec/serializers/post_serializer_spec.rb b/spec/serializers/post_serializer_spec.rb
index 80742fd..16378ca 100644
--- a/spec/serializers/post_serializer_spec.rb
+++ b/spec/serializers/post_serializer_spec.rb
@@ -29,4 +29,10 @@ RSpec.describe PostSerializer do
     expect(serializer.as_json[:post][:assigned_to_group].id).to eq(assign_allowed_group.id)
     expect(serializer.as_json[:post][:assigned_to_user]).to be nil
   end
+
+  it "includes priority in serializer" do
+    Assigner.new(post, user).assign(user, priority: 1)
+    serializer = PostSerializer.new(post, scope: guardian)
+    expect(serializer.as_json[:post][:assignment_priority]).to eq(1)
+  end
 end
diff --git a/spec/serializers/topic_view_serializer_spec.rb b/spec/serializers/topic_view_serializer_spec.rb
new file mode 100644
index 0000000..14f657b
--- /dev/null
+++ b/spec/serializers/topic_view_serializer_spec.rb
@@ -0,0 +1,38 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+require_relative '../support/assign_allowed_group'
+
+RSpec.describe TopicViewSerializer do
+  fab!(:user) { Fabricate(:user) }
+  fab!(:topic) { Fabricate(:topic) }
+  fab!(:post) { Fabricate(:post, topic: topic) }
+  let(:guardian) { Guardian.new(user) }
+
+  include_context 'A group that is allowed to assign'
+
+  before do
+    SiteSetting.assign_enabled = true
+    add_to_assign_allowed_group(user)
+  end
+
+  it "includes assigned user in serializer" do
+    Assigner.new(topic, user).assign(user)
+    serializer = TopicViewSerializer.new(TopicView.new(topic), scope: guardian)
+    expect(serializer.as_json[:topic_view][:assigned_to_user][:username]).to eq(user.username)
+    expect(serializer.as_json[:topic_view][:assigned_to_group]).to be nil
+  end
+
+  it "includes assigned group in serializer" do
+    Assigner.new(topic, user).assign(assign_allowed_group)
+    serializer = TopicViewSerializer.new(TopicView.new(topic), scope: guardian)
+    expect(serializer.as_json[:topic_view][:assigned_to_group][:name]).to eq(assign_allowed_group.name)
+    expect(serializer.as_json[:topic_view][:assigned_to_user]).to be nil
+  end
+
+  it "includes priority in serializer" do
+    Assigner.new(topic, user).assign(user, priority: 1)
+    serializer = TopicViewSerializer.new(TopicView.new(topic), scope: guardian)
+    expect(serializer.as_json[:topic_view][:assignment_priority]).to eq(1)
+  end
+end