diff --git a/addons/mail/models/mail_channel.py b/addons/mail/models/mail_channel.py
index bdc0f8b2160..fe33a2da77a 100644
--- a/addons/mail/models/mail_channel.py
+++ b/addons/mail/models/mail_channel.py
@@ -579,6 +579,10 @@ class Channel(models.Model):
                                           .channel_partner_ids
                                           .filtered(lambda p: p.id != self.env.user.partner_id.id)
                                           .read(['id', 'name', 'im_status']))
+                for direct_partner in info['direct_partner']:
+                    users = self.env['res.partner'].browse(direct_partner['id']).user_ids
+                    if users:
+                        direct_partner['out_of_office_message'] = users[0].out_of_office_message
 
             # add last message preview (only used in mobile)
             if self._context.get('isMobile', False):
diff --git a/addons/mail/static/src/js/models/threads/dm_chat.js b/addons/mail/static/src/js/models/threads/dm_chat.js
index 4967a1e9963..21fb72e91ae 100644
--- a/addons/mail/static/src/js/models/threads/dm_chat.js
+++ b/addons/mail/static/src/js/models/threads/dm_chat.js
@@ -1,7 +1,9 @@
 odoo.define('mail.model.DMChat', function (require) {
 "use strict";
 
+var core = require('web.core');
 var TwoUserChannel = require('mail.model.TwoUserChannel');
+var _t = core._t;
 
 /**
  * Any piece of code in JS that make use of DMs must ideally interact with
@@ -18,6 +20,7 @@ var DMChat = TwoUserChannel.extend({
      * @param {integer} params.data.direct_partner[0].id
      * @param {string} params.data.direct_partner[0].im_status
      * @param {string} params.data.direct_partner[0].name
+     * @param {string} [params.data.direct_partner[0].out_of_office_message='']
      */
     init: function (params) {
         this._super.apply(this, arguments);
@@ -50,6 +53,17 @@ var DMChat = TwoUserChannel.extend({
     getDirectPartnerID: function () {
         return this._directPartnerID;
     },
+    /**
+    * Get the out of office message of the thread
+    *
+    * @returns {string}
+    */
+   getOutOfOfficeMessage: function () {
+        if (this._outOfOfficeMessage === '') {
+            return undefined;
+        }
+        return this._outOfOfficeMessage;
+    },
     /**
      * @override
      */
diff --git a/addons/mail/static/src/js/thread_windows/abstract_thread_window.js b/addons/mail/static/src/js/thread_windows/abstract_thread_window.js
index 3e4e2e16325..da958c1c5f1 100644
--- a/addons/mail/static/src/js/thread_windows/abstract_thread_window.js
+++ b/addons/mail/static/src/js/thread_windows/abstract_thread_window.js
@@ -147,6 +147,22 @@ var AbstractThreadWindow = Widget.extend({
         }
         return this._thread;
     },
+    /**
+    * Get out of office user text
+    *
+    * @returns {string|undefined}
+    */
+   getOutOfOfficeMessage: function () {
+        if (
+            !(
+                this.hasThread() &&
+                this._thread.getType() === 'dm_chat'
+            )
+        ) {
+            return undefined;
+        }
+        return this._thread.getOutOfOfficeMessage();
+    },
     /**
      * Get the status of the thread, such as the im status of a DM chat
      * ('online', 'offline', etc.). If this window has no thread, returns
diff --git a/addons/mail/static/src/scss/abstract_thread_window.scss b/addons/mail/static/src/scss/abstract_thread_window.scss
index b148afa111f..62b0c42d033 100644
--- a/addons/mail/static/src/scss/abstract_thread_window.scss
+++ b/addons/mail/static/src/scss/abstract_thread_window.scss
@@ -79,6 +79,11 @@ $o-mail-thread-window-zindex: $zindex-modal + 1 !default;
 
     }
 
+    .o_out_of_office {
+        background-color: #9dd0e8;
+        padding:8px;
+    }
+
     .o_mail_thread {
         flex: 1 1 100%;
         overflow: auto;
diff --git a/addons/mail/static/src/scss/discuss.scss b/addons/mail/static/src/scss/discuss.scss
index 570dc2dedd6..711180d3544 100644
--- a/addons/mail/static/src/scss/discuss.scss
+++ b/addons/mail/static/src/scss/discuss.scss
@@ -252,6 +252,11 @@
     &.o_user_idle {
         color: theme-color('warning');
     }
+    &.fa-stack {
+        width: 1em;
+        height: 1em;
+        line-height: 1em;
+    }
 }
 
 
diff --git a/addons/mail/static/src/scss/thread.scss b/addons/mail/static/src/scss/thread.scss
index 7c867896150..84a826922ff 100644
--- a/addons/mail/static/src/scss/thread.scss
+++ b/addons/mail/static/src/scss/thread.scss
@@ -68,6 +68,19 @@
             margin-top: 2px;
             text-align: center;
             font-size: smaller;
+            .o_thread_message_sidebar_image {
+                position: relative;
+                height: $o-mail-thread-avatar-size;
+
+                .o_updatable_im_status {
+                    width: $o-mail-thread-avatar-size;
+                }
+                .o_mail_user_status {
+                    position: absolute;
+                    bottom: 0;
+                    right: 0;
+                }
+            }
 
             @include media-breakpoint-down(sm) {
                 margin-top: 4px;
diff --git a/addons/mail/static/src/xml/thread_window.xml b/addons/mail/static/src/xml/thread_window.xml
index 4164bc0abc9..4d175fcf2b8 100644
--- a/addons/mail/static/src/xml/thread_window.xml
+++ b/addons/mail/static/src/xml/thread_window.xml
@@ -6,6 +6,9 @@
     -->
     <t t-name="mail.ThreadWindow" t-extend="mail.AbstractThreadWindow">
         <t t-jquery=".o_thread_window_header" t-operation="after">
+            <div class="o_out_of_office" t-if="widget.getOutOfOfficeMessage() !== undefined">
+                <div class="o_out_of_office_text" t-esc="widget.getOutOfOfficeMessage()"/>
+            </div>
             <div t-if="!widget.hasThread()" class="o_thread_search_input">
                 <span> To: </span>
                 <input type="text" placeholder="User name"/>
diff --git a/addons/mail/static/tests/thread_window/basic_thread_window_tests.js b/addons/mail/static/tests/thread_window/basic_thread_window_tests.js
index 3fc942b506f..5a0bc62f880 100644
--- a/addons/mail/static/tests/thread_window/basic_thread_window_tests.js
+++ b/addons/mail/static/tests/thread_window/basic_thread_window_tests.js
@@ -632,6 +632,69 @@ QUnit.test('do not auto-focus chat window on receiving new message from new DM',
     parent.destroy();
 });
 
+QUnit.test('out-of-office status in thread window', function (assert) {
+    assert.expect(1);
+    this.data = {
+        'mail.message': {
+            fields: {},
+            records: [],
+        },
+        initMessaging: {
+            channel_slots: {
+                channel_channel: [{
+                    id: 1,
+                    name: "DM",
+                    channel_type: "chat",
+                    message_unread_counter: 0,
+                    direct_partner: [{ id: 666, name: 'DemoUser1', im_status: 'online', out_of_office_message: 'Please don\'t disturb'}],
+                }],
+            },
+        },
+    };
+    var parent = this.createParent({
+        data: this.data,
+        services: this.services,
+    });
+    // detach channel 1, so that it opens corresponding thread window.
+    parent.call('mail_service', 'getChannel', 1).detach();
+
+    var $threadWindow = $('.o_thread_window');
+    assert.containsOnce($threadWindow, '.o_out_of_office_text');
+
+    parent.destroy();
+});
+
+QUnit.test('no out-of-office status in thread window', function (assert) {
+    assert.expect(1);
+    this.data = {
+        'mail.message': {
+            fields: {},
+            records: [],
+        },
+        initMessaging: {
+            channel_slots: {
+                channel_channel: [{
+                    id: 1,
+                    name: "DM",
+                    channel_type: "chat",
+                    message_unread_counter: 0,
+                    direct_partner: [{ id: 666, name: 'DemoUser1', im_status: 'online'}],
+                }],
+            },
+        },
+    };
+    var parent = this.createParent({
+        data: this.data,
+        services: this.services,
+    });
+    // detach channel 1, so that it opens corresponding thread window.
+    parent.call('mail_service', 'getChannel', 1).detach();
+
+    var $threadWindow = $('.o_thread_window');
+    assert.containsNone($threadWindow, '.o_out_of_office_text');
+    parent.destroy();
+});
+
 });
 });
 });
diff --git a/addons/test_mail/tests/test_mail_channel.py b/addons/test_mail/tests/test_mail_channel.py
index 79ab747fed5..c95f562332d 100644
--- a/addons/test_mail/tests/test_mail_channel.py
+++ b/addons/test_mail/tests/test_mail_channel.py
@@ -196,6 +196,19 @@ class TestChannelFeatures(common.BaseFunctionalTest, common.MockEmails):
                 email['email_to'][0],
                 [formataddr((self.user_employee.name, self.user_employee.email)), formataddr((self.test_partner.name, self.test_partner.email))])
 
+    @mute_logger('odoo.addons.mail.models.mail_mail')
+    def test_channel_out_of_office(self):
+        self.user_employee.out_of_office_message = 'Out'
+        test_chat = self.env['mail.channel'].with_context(common.BaseFunctionalTest._test_context).create({
+            'channel_partner_ids': [(4, self.user_employee.partner_id.id), (4, self.user_admin.partner_id.id)],
+            'public': 'private',
+            'channel_type': 'chat',
+            'email_send': False,
+            'name': 'test'
+        })
+        infos = test_chat.sudo(self.user_admin).channel_info()
+        self.assertEqual(infos[0]['direct_partner'][0]['out_of_office_message'], 'Out')
+
 
 @tagged('moderation')
 class TestChannelModeration(common.Moderation):