diff --git a/cookiecutter.json b/cookiecutter.json
index d5e1803..e498ade 100644
--- a/cookiecutter.json
+++ b/cookiecutter.json
@@ -13,6 +13,9 @@
     "use_flower": "n",
     "use_fingerprinting": "n",
     "use_channels": "y",
+    "use_allauth": "n",
+    "allauth_trust_external_emails": "y",
+    "allauth_providers": "google",
     "sentry_dsn": "",
     "csp_enabled": "n",
     "csp_report_only": "y",
diff --git a/{{cookiecutter.repostory_name}}/README.md b/{{cookiecutter.repostory_name}}/README.md
index 3d41972..e877781 100644
--- a/{{cookiecutter.repostory_name}}/README.md
+++ b/{{cookiecutter.repostory_name}}/README.md
@@ -103,6 +103,48 @@ git push --force production local-branch-to-deploy:master
 
 </details>
 
+{% if cookiecutter.use_allauth == 'y' %}
+# External auth (OAuth, OpenID connect etc.)
+To configure an external authentication mechanism, usually you must acquire a "client ID" and a "client secret".
+This usually requires registering your application on the provider's website. Look at allauth's documentation for the
+specific provider to see how to do that:
+
+[https://docs.allauth.org/en/latest/socialaccount/providers/index.html](https://docs.allauth.org/en/latest/socialaccount/providers/index.html)
+
+After acquiring the id and secret, simply fill in the env vars for the provider.
+{% if cookiecutter.allauth_trust_external_emails == "y" %}
+
+> ⚠️ Caution: the SSO provider is trusted to have verified the ownership of user's email address.
+> This will allow a user to log in to any account that matches the email address returned by the
+> SSO provider, whether the account is connected with the provider or not.
+
+{% endif %}
+
+{%- if 'openid_connect' in cookiecutter.allauth_providers %}
+## Setting up a generic OpenID Connect service
+<details>
+If an SSO provider supports the OIDC protocol, it can be set up as a generic OIDC provider here: 
+
+1. Come up with a new `provider_id`
+   - it's just an arbitrary alphanumerical string to identify the provider in the app
+   - it must be unique in the scope of the app
+   - it should not collide with the name of an installed provider type - so don't use `gitlab`, `google` or similar
+   - something like `rt_keycloak` would be OK
+2. Register the app with the provider to acquire a `client_id`, a `secret` and the URL for the openid config (e.g. https://gitlab.com/.well-known/openid-configuration)
+   - When asked for callback / redirect url, use `https://{domain}/accounts/oidc/{provider_id}/login/callback/`
+   - For development, usually http://127.0.0.1:8000 can be used as the base URL here
+3. Fill in the `OPENID_CONNECT_*` env vars 
+   - `OPENID_CONNECT_NICE_NAME` is just a human-readable name, it will be later shown on login form (Log in with {name}...)
+   - the `OPENID_CONNECT_SERVER_URL` value is just the URL **before** the .well-known part, so for https://gitlab.com/.well-known/openid-configuration this is just https://gitlab.com
+</details>
+
+{% endif %} 
+## Allauth users in django
+1. Allauth does not disable django's authentication. It lives next to it as an alternative. You can still access django admin login.
+2. Allauth "social users" are just an extension to regular django users. When someone logs in via allauth, a django user model will also be created for them.
+3. A "profile" page is available at `/accounts/`
+
+{% endif %}
 {% if cookiecutter.monitoring == 'y' %}
 # Monitoring
 
diff --git a/{{cookiecutter.repostory_name}}/app/src/{{cookiecutter.django_project_name}}/settings.py b/{{cookiecutter.repostory_name}}/app/src/{{cookiecutter.django_project_name}}/settings.py
index 84ab290..e2886c2 100644
--- a/{{cookiecutter.repostory_name}}/app/src/{{cookiecutter.django_project_name}}/settings.py
+++ b/{{cookiecutter.repostory_name}}/app/src/{{cookiecutter.django_project_name}}/settings.py
@@ -13,6 +13,9 @@
 
 {% if cookiecutter.use_celery == "y" -%}
 # from celery.schedules import crontab
+{% endif %}
+{%- if cookiecutter.use_allauth == "y" -%}
+from django.urls import reverse_lazy
 {% endif -%}
 import structlog
 
@@ -59,6 +62,13 @@ def wrapped(*args, **kwargs):
 
 ALLOWED_HOSTS = ["*"]
 
+AUTHENTICATION_BACKENDS = [
+    "django.contrib.auth.backends.ModelBackend",
+    {%- if cookiecutter.use_allauth == "y" %}
+    "allauth.account.auth_backends.AuthenticationBackend",
+    {%- endif %}
+]
+
 INSTALLED_APPS = [
     {%- if cookiecutter.use_channels == "y" %}
     "daphne",
@@ -87,9 +97,44 @@ def wrapped(*args, **kwargs):
     "django_probes",
     "django_structlog",
     "constance",
-    {% if cookiecutter.use_fingerprinting == "y" -%}
+    {%- if cookiecutter.use_fingerprinting == "y" %}
     "fingerprint",
-    {% endif -%}
+    {%- endif %}
+    {%- if cookiecutter.use_allauth == "y" %}
+    "allauth",
+    "allauth.account",
+    "allauth.socialaccount",
+    {%- if 'apple' in cookiecutter.allauth_providers -%}
+    "allauth.socialaccount.providers.apple",
+    {%- endif %}
+    {%- if 'atlassian' in cookiecutter.allauth_providers -%}
+    "allauth.socialaccount.providers.atlassian",
+    {%- endif %}
+    {%- if 'discord' in cookiecutter.allauth_providers -%}
+    "allauth.socialaccount.providers.discord",
+    {%- endif %}
+    {%- if 'facebook' in cookiecutter.allauth_providers -%}
+    "allauth.socialaccount.providers.facebook",
+    {%- endif %}
+    {%- if 'github' in cookiecutter.allauth_providers -%}
+    "allauth.socialaccount.providers.github",
+    {%- endif %}
+    {%- if 'gitlab' in cookiecutter.allauth_providers -%}
+    "allauth.socialaccount.providers.gitlab",
+    {%- endif %}
+    {%- if 'google' in cookiecutter.allauth_providers -%}
+    "allauth.socialaccount.providers.google",
+    {%- endif %}
+    {%- if 'microsoft' in cookiecutter.allauth_providers -%}
+    "allauth.socialaccount.providers.microsoft",
+    {%- endif %}
+    {%- if 'openid_connect' in cookiecutter.allauth_providers -%}
+    "allauth.socialaccount.providers.openid_connect",
+    {%- endif %}
+    {%- if 'twitter' in cookiecutter.allauth_providers -%}
+    "allauth.socialaccount.providers.twitter_oauth2",
+    {%- endif %}
+    {%- endif %}
     "{{cookiecutter.django_project_name}}.{{cookiecutter.django_default_app_name}}",
 ]
 
@@ -131,6 +176,9 @@ def wrapped(*args, **kwargs):
     "django_prometheus.middleware.PrometheusAfterMiddleware",
     {%- endif %}
     "django_structlog.middlewares.RequestMiddleware",
+    {%- if cookiecutter.use_allauth == "y" -%}
+    "allauth.account.middleware.AccountMiddleware",
+    {%- endif %}
 ]
 
 
@@ -297,6 +345,8 @@ def wrapped(*args, **kwargs):
 CELERY_RESULT_SERIALIZER = "json"
 CELERY_WORKER_PREFETCH_MULTIPLIER = env.int("CELERY_WORKER_PREFETCH_MULTIPLIER", default=10)
 CELERY_BROKER_POOL_LIMIT = env.int("CELERY_BROKER_POOL_LIMIT", default=50)
+
+DJANGO_STRUCTLOG_CELERY_ENABLED = True
 {%- endif %}
 
 EMAIL_BACKEND = env("EMAIL_BACKEND")
@@ -355,7 +405,6 @@ def wrapped(*args, **kwargs):
         },
     },
 }
-DJANGO_STRUCTLOG_CELERY_ENABLED = True
 
 
 def configure_structlog():
@@ -382,7 +431,9 @@ def configure_structlog():
 # Sentry
 if SENTRY_DSN := env("SENTRY_DSN", default=""):
     import sentry_sdk
+    {% if cookiecutter.use_celery == "y" -%}
     from sentry_sdk.integrations.celery import CeleryIntegration
+    {% endif -%}
     from sentry_sdk.integrations.django import DjangoIntegration
     from sentry_sdk.integrations.logging import LoggingIntegration, ignore_logger
     from sentry_sdk.integrations.redis import RedisIntegration
@@ -392,7 +443,9 @@ def configure_structlog():
         environment=ENV,
         integrations=[
             DjangoIntegration(),
+            {% if cookiecutter.use_celery == "y" -%}
             CeleryIntegration(),
+            {% endif -%}
             RedisIntegration(),
             LoggingIntegration(
                 level=logging.INFO,  # Capture info and above as breadcrumbs
@@ -401,3 +454,112 @@ def configure_structlog():
         ],
     )
     ignore_logger("django.security.DisallowedHost")
+{% if cookiecutter.use_allauth == "y" -%}
+LOGIN_URL = reverse_lazy("account_login")
+LOGIN_REDIRECT_URL = "/"
+ACCOUNT_AUTHENTICATION_METHOD = "email"
+ACCOUNT_EMAIL_REQUIRED = True
+ACCOUNT_EMAIL_VERIFICATION = "mandatory"
+ACCOUNT_EMAIL_UNKNOWN_ACCOUNTS = False
+ACCOUNT_USERNAME_REQUIRED = False
+ACCOUNT_CHANGE_EMAIL = False
+ACCOUNT_MAX_EMAIL_ADDRESSES = 1
+{%- if cookiecutter.allauth_trust_external_emails == "y" %}
+# Trust, that the configured SSO providers verify that the users own the addresses that we get from the SSO flow.
+# This allows users to log in to any existing account with any configured provider if the email addresses match.
+SOCIALACCOUNT_EMAIL_AUTHENTICATION: True
+{%- endif %}
+SOCIALACCOUNT_PROVIDERS = {
+    {%- if 'apple' in cookiecutter.allauth_providers %}
+    "apple": {
+        "APP": {
+            "client_id": env("APPLE_LOGIN_CLIENT_ID"),
+            "secret": env("APPLE_LOGIN_SECRET"),
+            "key": env("APPLE_LOGIN_KEY"),
+            "settings": {
+                "certificate_key": env("APPLE_LOGIN_CERTIFICATE_PRIVATE_KEY"),
+            },
+        },
+    },
+    {%- endif %}
+    {%- if 'atlassian' in cookiecutter.allauth_providers %}
+    "atlassian": {
+        "APP": {
+            "client_id": env("ATLASSIAN_LOGIN_CLIENT_ID"),
+            "secret": env("ATLASSIAN_LOGIN_SECRET"),
+        },
+    },
+    {%- endif %}
+    {%- if 'discord' in cookiecutter.allauth_providers %}
+    "discord": {
+        "APP": {
+            "client_id": env("DISCORD_LOGIN_CLIENT_ID"),
+            "secret": env("DISCORD_LOGIN_SECRET"),
+        },
+    },
+    {%- endif %}
+    {%- if 'facebook' in cookiecutter.allauth_providers %}
+    "facebook": {
+        "APP": {
+            "client_id": env("FACEBOOK_LOGIN_CLIENT_ID"),
+            "secret": env("FACEBOOK_LOGIN_SECRET"),
+        },
+    },
+    {%- endif %}
+    {%- if 'github' in cookiecutter.allauth_providers %}
+    "github": {
+        "APP": {
+            "client_id": env("GITHUB_LOGIN_CLIENT_ID"),
+            "secret": env("GITHUB_LOGIN_SECRET"),
+        },
+    },
+    {%- endif %}
+    {%- if 'gitlab' in cookiecutter.allauth_providers %}
+    "gitlab": {
+        "APP": {
+            "client_id": env("GITLAB_LOGIN_CLIENT_ID"),
+            "secret": env("GITLAB_LOGIN_SECRET"),
+        },
+    },
+    {%- endif %}
+    {%- if 'google' in cookiecutter.allauth_providers %}
+    "google": {
+        "APP": {
+            "client_id": env("GOOGLE_LOGIN_CLIENT_ID"),
+            "secret": env("GOOGLE_LOGIN_SECRET"),
+        },
+    },
+    {%- endif %}
+    {%- if 'microsoft' in cookiecutter.allauth_providers %}
+    "microsoft": {
+        "APP": {
+            "client_id": env("MICROSOFT_LOGIN_CLIENT_ID"),
+            "secret": env("MICROSOFT_LOGIN_SECRET"),
+            "settings": {
+                "tenant": "organizations",
+            },
+        },
+    },
+    {%- endif %}
+    {%- if 'twitter' in cookiecutter.allauth_providers %}
+    "twitter_oauth2": {
+        "APP": {
+            "client_id": env("TWITTER_LOGIN_CLIENT_ID"),
+            "secret": env("TWITTER_LOGIN_SECRET"),
+        },
+    },
+    {%- endif %}
+    {%- if 'openid_connect' in cookiecutter.allauth_providers %}
+    "openid_connect": {
+        "APP": {
+            "client_id": "oidc",
+            "name": env("OPENID_CONNECT_NICE_NAME"),
+            "secret": env("OPENID_CONNECT_LOGIN_SECRET"),
+            "settings": {
+                "server_url": env("OPENID_CONNECT_SERVER_URL")
+            }
+        },
+    },
+    {%- endif %}
+}
+{%- endif %}
\ No newline at end of file
diff --git a/{{cookiecutter.repostory_name}}/app/src/{{cookiecutter.django_project_name}}/urls.py b/{{cookiecutter.repostory_name}}/app/src/{{cookiecutter.django_project_name}}/urls.py
index 7305cd0..24d22cc 100644
--- a/{{cookiecutter.repostory_name}}/app/src/{{cookiecutter.django_project_name}}/urls.py
+++ b/{{cookiecutter.repostory_name}}/app/src/{{cookiecutter.django_project_name}}/urls.py
@@ -16,7 +16,6 @@
 
 urlpatterns = [
     path("admin/", site.urls),
-    path("", include("django.contrib.auth.urls")),
     {%- if cookiecutter.use_fingerprinting == "y" %}
     path("redirect/", FingerprintView.as_view(), name="fingerprint"),
     {%- endif %}
@@ -25,6 +24,11 @@
     path("business-metrics", metrics_manager.view, name="prometheus-business-metrics"),
     path("healthcheck/", include("health_check.urls")),
     {%- endif %}
+    {%- if cookiecutter.use_allauth == "y" %}
+    path('accounts/', include('allauth.urls')),
+    {%- else %}
+    path("", include("django.contrib.auth.urls")),
+    {%- endif %}
 ]
 
 {%- if cookiecutter.use_channels == "y" %}
diff --git a/{{cookiecutter.repostory_name}}/envs/dev/.env.template b/{{cookiecutter.repostory_name}}/envs/dev/.env.template
index 07649d1..d8f8e29 100644
--- a/{{cookiecutter.repostory_name}}/envs/dev/.env.template
+++ b/{{cookiecutter.repostory_name}}/envs/dev/.env.template
@@ -70,3 +70,50 @@ BACKUP_B2_BUCKET=
 BACKUP_B2_KEY_ID=
 BACKUP_B2_KEY_SECRET=
 BACKUP_LOCAL_ROTATE_KEEP_LAST=
+
+{% if cookiecutter.use_allauth == "y" -%}
+{%- if 'apple' in cookiecutter.allauth_providers -%}
+APPLE_LOGIN_CLIENT_ID=
+APPLE_LOGIN_SECRET=
+APPLE_LOGIN_KEY=
+APPLE_LOGIN_CERTIFICATE_PRIVATE_KEY=
+{% endif %}
+{%- if 'discord' in cookiecutter.allauth_providers -%}
+DISCORD_LOGIN_CLIENT_ID=
+DISCORD_LOGIN_SECRET=
+{% endif %}
+{%- if 'facebook' in cookiecutter.allauth_providers -%}
+FACEBOOK_LOGIN_CLIENT_ID=
+FACEBOOK_LOGIN_SECRET=
+{% endif %}
+{%- if 'github' in cookiecutter.allauth_providers -%}
+GITHUB_LOGIN_CLIENT_ID=
+GITHUB_LOGIN_SECRET=
+{% endif %}
+{%- if 'gitlab' in cookiecutter.allauth_providers -%}
+GITLAB_LOGIN_CLIENT_ID=
+GITLAB_LOGIN_SECRET=
+{% endif %}
+{%- if 'google' in cookiecutter.allauth_providers -%}
+GOOGLE_LOGIN_CLIENT_ID=
+GOOGLE_LOGIN_SECRET=
+{% endif %}
+{%- if 'microsoft' in cookiecutter.allauth_providers -%}
+MICROSOFT_LOGIN_CLIENT_ID=
+MICROSOFT_LOGIN_SECRET=
+{% endif %}
+{%- if 'openid_connect' in cookiecutter.allauth_providers -%}
+OPENID_CONNECT_NICE_NAME=
+OPENID_CONNECT_LOGIN_CLIENT_ID=
+OPENID_CONNECT_LOGIN_SECRET=
+OPENID_CONNECT_SERVER_URL=
+{% endif %}
+{%- if 'twitter' in cookiecutter.allauth_providers -%}
+TWITTER_LOGIN_CLIENT_ID=
+TWITTER_LOGIN_SECRET=
+{% endif %}
+{%- if 'atlassian' in cookiecutter.allauth_providers -%}
+ATLASSIAN_LOGIN_CLIENT_ID=
+ATLASSIAN_LOGIN_SECRET=
+{% endif %}
+{% endif %}
\ No newline at end of file
diff --git a/{{cookiecutter.repostory_name}}/envs/prod/.env.template b/{{cookiecutter.repostory_name}}/envs/prod/.env.template
index 47fb77a..ded54dc 100644
--- a/{{cookiecutter.repostory_name}}/envs/prod/.env.template
+++ b/{{cookiecutter.repostory_name}}/envs/prod/.env.template
@@ -79,3 +79,50 @@ BACKUP_B2_BUCKET=
 BACKUP_B2_KEY_ID=
 BACKUP_B2_KEY_SECRET=
 BACKUP_LOCAL_ROTATE_KEEP_LAST=
+
+{% if cookiecutter.use_allauth == "y" -%}
+{%- if 'apple' in cookiecutter.allauth_providers -%}
+APPLE_LOGIN_CLIENT_ID=
+APPLE_LOGIN_SECRET=
+APPLE_LOGIN_KEY=
+APPLE_LOGIN_CERTIFICATE_PRIVATE_KEY=
+{% endif %}
+{%- if 'discord' in cookiecutter.allauth_providers -%}
+DISCORD_LOGIN_CLIENT_ID=
+DISCORD_LOGIN_SECRET=
+{% endif %}
+{%- if 'facebook' in cookiecutter.allauth_providers -%}
+FACEBOOK_LOGIN_CLIENT_ID=
+FACEBOOK_LOGIN_SECRET=
+{% endif %}
+{%- if 'github' in cookiecutter.allauth_providers -%}
+GITHUB_LOGIN_CLIENT_ID=
+GITHUB_LOGIN_SECRET=
+{% endif %}
+{%- if 'gitlab' in cookiecutter.allauth_providers -%}
+GITLAB_LOGIN_CLIENT_ID=
+GITLAB_LOGIN_SECRET=
+{% endif %}
+{%- if 'google' in cookiecutter.allauth_providers -%}
+GOOGLE_LOGIN_CLIENT_ID=
+GOOGLE_LOGIN_SECRET=
+{% endif %}
+{%- if 'microsoft' in cookiecutter.allauth_providers -%}
+MICROSOFT_LOGIN_CLIENT_ID=
+MICROSOFT_LOGIN_SECRET=
+{% endif %}
+{%- if 'openid_connect' in cookiecutter.allauth_providers -%}
+OPENID_CONNECT_NICE_NAME=
+OPENID_CONNECT_LOGIN_CLIENT_ID=
+OPENID_CONNECT_LOGIN_SECRET=
+OPENID_CONNECT_SERVER_URL=
+{% endif %}
+{%- if 'twitter' in cookiecutter.allauth_providers -%}
+TWITTER_LOGIN_CLIENT_ID=
+TWITTER_LOGIN_SECRET=
+{% endif %}
+{%- if 'atlassian' in cookiecutter.allauth_providers -%}
+ATLASSIAN_LOGIN_CLIENT_ID=
+ATLASSIAN_LOGIN_SECRET=
+{% endif %}
+{% endif %}
\ No newline at end of file
diff --git a/{{cookiecutter.repostory_name}}/pyproject.toml b/{{cookiecutter.repostory_name}}/pyproject.toml
index b7d8f3f..af7fe09 100644
--- a/{{cookiecutter.repostory_name}}/pyproject.toml
+++ b/{{cookiecutter.repostory_name}}/pyproject.toml
@@ -42,6 +42,9 @@ dependencies = [
     "uvicorn[standard]==0.29",
     "pydantic~=2.0",
     {% endif -%}
+    {% if cookiecutter.use_allauth == "y" -%}
+    "django-allauth[socialaccount]~=0.63.1",
+    {% endif -%}
 ]
 
 [build-system]