diff --git a/src/fellchensammlung/forms.py b/src/fellchensammlung/forms.py
index af21430..3e59f1d 100644
--- a/src/fellchensammlung/forms.py
+++ b/src/fellchensammlung/forms.py
@@ -116,6 +116,12 @@ class ReportCommentForm(forms.ModelForm):
         fields = ('reported_broken_rules', 'user_comment')
 
 
+class UserModCommentForm(forms.ModelForm):
+    class Meta:
+        model = User
+        fields = ('mod_notes',)
+
+
 class CommentForm(forms.ModelForm):
     class Meta:
         model = Comment
diff --git a/src/fellchensammlung/migrations/0070_user_mod_notes_alter_user_reason_for_signup.py b/src/fellchensammlung/migrations/0070_user_mod_notes_alter_user_reason_for_signup.py
new file mode 100644
index 0000000..bc2af60
--- /dev/null
+++ b/src/fellchensammlung/migrations/0070_user_mod_notes_alter_user_reason_for_signup.py
@@ -0,0 +1,23 @@
+# Generated by Django 5.2.8 on 2025-11-16 16:50
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('fellchensammlung', '0069_rescueorganization_regular_check_status'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='user',
+            name='mod_notes',
+            field=models.TextField(blank=True, null=True, verbose_name='Moderationsnotizen'),
+        ),
+        migrations.AlterField(
+            model_name='user',
+            name='reason_for_signup',
+            field=models.TextField(help_text="Wir würden gerne wissen warum du dich registrierst, ob du dich z.B. Tiere eines bestimmten Tierheim einstellen willst 'nur mal gucken' willst. Beides ist toll! Wenn du für ein Tierheim/eine Pflegestelle arbeitest kontaktieren wir dich ggf. um dir erweiterte Rechte zu geben.", verbose_name='Grund für die Registrierung'),
+        ),
+    ]
diff --git a/src/fellchensammlung/models.py b/src/fellchensammlung/models.py
index 7f73b4a..0df8e64 100644
--- a/src/fellchensammlung/models.py
+++ b/src/fellchensammlung/models.py
@@ -309,6 +309,7 @@ class User(AbstractUser):
     organization_affiliation = models.ForeignKey(RescueOrganization, on_delete=models.PROTECT, null=True, blank=True,
                                                  verbose_name=_('Organisation'))
     reason_for_signup = models.TextField(verbose_name=reason_for_signup_label, help_text=reason_for_signup_help_text)
+    mod_notes = models.TextField(verbose_name=_("Moderationsnotizen"), null=True, blank=True)
     email_notifications = models.BooleanField(verbose_name=_("Benachrichtigung per E-Mail"), default=True)
     REQUIRED_FIELDS = ["reason_for_signup", "email"]
 
diff --git a/src/fellchensammlung/templates/fellchensammlung/details/detail-user.html b/src/fellchensammlung/templates/fellchensammlung/details/detail-user.html
index 3e1c181..06979ce 100644
--- a/src/fellchensammlung/templates/fellchensammlung/details/detail-user.html
+++ b/src/fellchensammlung/templates/fellchensammlung/details/detail-user.html
@@ -98,15 +98,35 @@
                 </details>
 
             </div>
-
-            <h2 class="title is-2">{% translate 'Benachrichtigungen' %}</h2>
-            {% include "fellchensammlung/lists/list-notifications.html" %}
-
-            <h2 class="title is-2">{% translate 'Abonnierte Suchen' %}</h2>
-            {% include "fellchensammlung/lists/list-search-subscriptions.html" %}
-
-            <h2 class="title is-2">{% translate 'Meine Vermittlungen' %}</h2>
-            {% include "fellchensammlung/lists/list-adoption-notices.html" %}
-
         {% endif %}
+
+        {% if show_mod_actions %}
+            <div class="block">
+                <h2 class="title is-2">{% trans 'Moderation' %}</h2>
+                <div class="block">
+                    <p><strong>{% translate 'Moderationsnotizen' %}:</strong> {{ user.mod_notes }}</p>
+                </div>
+                <div class="block">
+                    {% if user.is_active %}
+                        <a href="{% url 'user-deactivate' user_id=user.pk %}" class="button is-danger">
+                            {% translate 'User deaktivieren' %}
+                        </a>
+                    {% else %}
+                        <a href="{% url 'user-activate' user_id=user.pk %}" class="button is-info">
+                            {% translate 'User aktivieren' %}
+                        </a>
+                    {% endif %}
+                </div>
+            </div>
+        {% endif %}
+
+        <h2 class="title is-2">{% translate 'Benachrichtigungen' %}</h2>
+        {% include "fellchensammlung/lists/list-notifications.html" %}
+
+        <h2 class="title is-2">{% translate 'Abonnierte Suchen' %}</h2>
+        {% include "fellchensammlung/lists/list-search-subscriptions.html" %}
+
+        <h2 class="title is-2">{% translate 'Vermittlungen' %}</h2>
+        {% include "fellchensammlung/lists/list-adoption-notices.html" %}
+
 {% endblock %}
\ No newline at end of file
diff --git a/src/fellchensammlung/templates/fellchensammlung/forms/form-activate-user.html b/src/fellchensammlung/templates/fellchensammlung/forms/form-activate-user.html
new file mode 100644
index 0000000..d179b81
--- /dev/null
+++ b/src/fellchensammlung/templates/fellchensammlung/forms/form-activate-user.html
@@ -0,0 +1,17 @@
+{% extends "fellchensammlung/base.html" %}
+{% load i18n %}
+
+{% block description %}
+    <meta name="description" content="{% trans 'User aktivieren' %}">
+{% endblock %}
+{% block content %}
+    <h1 class="title is-1">{% trans 'User aktivieren' %}</h1>
+    {% blocktranslate %}
+        Hier kannst du einen User manuell aktivieren und optional eine Notiz hinterlassen.
+    {% endblocktranslate %}
+    <form method="post">
+        {% csrf_token %}
+        {{ form }}
+        <button class="button is-info is-fullwidth" type="submit">{% translate "Aktivieren" %}</button>
+    </form>
+{% endblock %}
\ No newline at end of file
diff --git a/src/fellchensammlung/templates/fellchensammlung/forms/form-deactivate-user.html b/src/fellchensammlung/templates/fellchensammlung/forms/form-deactivate-user.html
new file mode 100644
index 0000000..629c7bb
--- /dev/null
+++ b/src/fellchensammlung/templates/fellchensammlung/forms/form-deactivate-user.html
@@ -0,0 +1,19 @@
+{% extends "fellchensammlung/base.html" %}
+{% load i18n %}
+
+{% block description %}
+    <meta name="description" content="{% trans 'User deaktivieren' %}">
+{% endblock %}
+{% block content %}
+    <h1 class="title is-1">{% trans 'User deaktivieren' %}</h1>
+    {% url "about" as rule_url %}
+    {% blocktranslate %}
+        Wenn dieser User unseren <a href='{{ rule_url }}'>Regeln</a> zuwider gehandelt hat oder seit langem inaktiv
+        ist, kannst du ihn deaktivieren.
+    {% endblocktranslate %}
+    <form method="post">
+        {% csrf_token %}
+        {{ form }}
+        <button class="button is-danger is-fullwidth" type="submit">{% translate "Deaktivieren" %}</button>
+    </form>
+{% endblock %}
\ No newline at end of file
diff --git a/src/fellchensammlung/urls.py b/src/fellchensammlung/urls.py
index c007eca..cf24cc4 100644
--- a/src/fellchensammlung/urls.py
+++ b/src/fellchensammlung/urls.py
@@ -90,11 +90,12 @@ urlpatterns = [
     ###########
     # ex: user/1
     path("user/<int:user_id>/", views.user_by_id, name="user-detail"),
+    path("user/<int:user_id>/deactivate/", views.user_deactivate, name="user-deactivate"),
+    path("user/<int:user_id>/activate/", views.user_activate, name="user-activate"),
     path("user/me/", views.my_profile, name="user-me"),
     path("user/notifications/", views.my_notifications, name="user-notifications"),
     path('user/me/export/', views.export_own_profile, name='user-me-export'),
 
-
     path('change-language', views.change_language, name="change-language"),
 
     ###########
@@ -120,7 +121,7 @@ urlpatterns = [
     ###################
     ## External Site ##
     ###################
-    path('bulma/external-site/', views.external_site_warning, name="external-site"),
+    path('external-site/', views.external_site_warning, name="external-site"),
 
     ###############
     ## TECHNICAL ##
diff --git a/src/fellchensammlung/views.py b/src/fellchensammlung/views.py
index 2d639e4..8fd66f6 100644
--- a/src/fellchensammlung/views.py
+++ b/src/fellchensammlung/views.py
@@ -25,7 +25,7 @@ from .models import AdoptionNotice, Text, Animal, Rule, Image, Report, Moderatio
     ImportantLocation, SpeciesSpecificURL, NotificationTypeChoices, SocialMediaPost
 from .forms import AdoptionNoticeForm, ImageForm, ReportAdoptionNoticeForm, \
     CommentForm, ReportCommentForm, AnimalForm, AdoptionNoticeFormAutoAnimal, SpeciesURLForm, RescueOrgInternalComment, \
-    UpdateRescueOrgRegularCheckStatus
+    UpdateRescueOrgRegularCheckStatus, UserModCommentForm
 from .models import Language, Announcement
 from .tools import i18n, img
 from .tools.fedi import post_an_to_fedi
@@ -611,6 +611,9 @@ def user_detail(request, user, token=None):
     user_detail_profile.add_status("Finished - returning to renderer")
     if request.user.is_superuser:
         context["profile"] = user_detail_profile.as_relative_with_ms
+    if request.user.trust_level > TrustLevel.MODERATOR:
+        context["show_mod_actions"] = True
+
     return render(request, 'fellchensammlung/details/detail-user.html', context=context)
 
 
@@ -685,6 +688,36 @@ def my_notifications(request):
     return render(request, 'fellchensammlung/notifications.html', context=context)
 
 
+def user_activate(request, user_id):
+    return user_de_activation(request, user_id, True)
+
+
+def user_deactivate(request, user_id):
+    return user_de_activation(request, user_id, False)
+
+
+def user_de_activation(request, user_id, is_to_be_active):
+    """
+    Activates or deactivates a user
+    """
+    user = User.objects.get(id=user_id)
+    if request.method == 'POST':
+        form = UserModCommentForm(request.POST, instance=user)
+
+        if form.is_valid():
+            user_instance = form.save(commit=False)
+            user_instance.is_active = is_to_be_active
+            user_instance.save()
+            return redirect(reverse("user-detail", args=[user_instance.pk], ))
+    else:
+        form = UserModCommentForm(instance=user)
+    if is_to_be_active:
+        template = 'fellchensammlung/forms/form-activate-user.html'
+    else:
+        template = 'fellchensammlung/forms/form-deactivate-user.html'
+    return render(request, template, {'form': form})
+
+
 @user_passes_test(user_is_trust_level_or_above)
 def modqueue(request):
     open_reports = Report.objects.select_related("reportadoptionnotice", "reportcomment").filter(status=Report.WAITING)