diff --git a/addons/website_event/controllers/main.py b/addons/website_event/controllers/main.py
index e35d52f89bb..e837c4f1313 100644
--- a/addons/website_event/controllers/main.py
+++ b/addons/website_event/controllers/main.py
@@ -312,7 +312,27 @@ class WebsiteEventController(http.Controller):
                 availability_check = False
         if not tickets:
             return False
-        return request.env['ir.ui.view']._render_template("website_event.registration_attendee_details", {'tickets': tickets, 'event': event, 'availability_check': availability_check})
+        default_first_attendee = {}
+        if not request.env.user._is_public():
+            default_first_attendee = {
+                "name": request.env.user.name,
+                "email": request.env.user.email,
+                "phone": request.env.user.mobile or request.env.user.phone,
+            }
+        else:
+            visitor = request.env['website.visitor']._get_visitor_from_request()
+            if visitor.email:
+                default_first_attendee = {
+                    "name": visitor.name,
+                    "email": visitor.email,
+                    "phone": visitor.mobile,
+                }
+        return request.env['ir.ui.view']._render_template("website_event.registration_attendee_details", {
+            'tickets': tickets,
+            'event': event,
+            'availability_check': availability_check,
+            'default_first_attendee': default_first_attendee,
+        })
 
     def _process_attendees_form(self, event, form_details):
         """ Process data posted from the attendee details form.
diff --git a/addons/website_event/views/event_templates_page_registration.xml b/addons/website_event/views/event_templates_page_registration.xml
index ad454de1a5c..4d5d58805b5 100644
--- a/addons/website_event/views/event_templates_page_registration.xml
+++ b/addons/website_event/views/event_templates_page_registration.xml
@@ -269,15 +269,18 @@
                                 <div class="row">
                                     <div class="col-lg my-2">
                                         <label>Name</label>
-                                        <input class="form-control" type="text" t-attf-name="#{counter}-name" required="This field is required"/>
+                                        <input class="form-control" type="text" t-attf-name="#{counter}-name" required="This field is required"
+                                            t-att-value="default_first_attendee.get('name', '') if counter == 1 else ''"/>
                                     </div>
                                     <div class="col-lg my-2">
                                         <label>Email</label>
-                                        <input class="form-control" type="email" t-attf-name="#{counter}-email" required="This field is required"/>
+                                        <input class="form-control" type="email" t-attf-name="#{counter}-email" required="This field is required"
+                                            t-att-value="default_first_attendee.get('email', '') if counter == 1 else ''"/>
                                     </div>
                                     <div class="col-lg my-2">
                                         <label>Phone <small>(Optional)</small></label>
-                                        <input class="form-control" type="tel" t-attf-name="#{counter}-phone"/>
+                                        <input class="form-control" type="tel" t-attf-name="#{counter}-phone"
+                                            t-att-value="default_first_attendee.get('phone', '') if counter == 1 else ''"/>
                                     </div>
                                     <input class="d-none" type="text" t-attf-name="#{counter}-event_ticket_id" t-attf-value="#{ticket['id']}"/>
                                 </div>