diff --git a/changelogs/fragments/6493-deprecate-rhn-modules.yml b/changelogs/fragments/6493-deprecate-rhn-modules.yml
new file mode 100644
index 0000000000..5f328707da
--- /dev/null
+++ b/changelogs/fragments/6493-deprecate-rhn-modules.yml
@@ -0,0 +1,10 @@
+deprecated_features:
+  - |
+    rhn_channel, rhn_register - RHN hosted at redhat.com was discontinued years
+    ago, and Spacewalk 5 (which uses RHN) is EOL since 2020, May 31st;
+    while these modules could work on Uyuni / SUSE Manager (fork of Spacewalk 5),
+    we have not heard about anyone using them in those setups. Hence, these
+    modules are deprecated, and will be removed in community.general 10.0.0
+    in case there are no reports about being still useful, and potentially
+    noone that steps up to maintain them
+    (https://github.com/ansible-collections/community.general/pull/6493).
diff --git a/meta/runtime.yml b/meta/runtime.yml
index 0cdb1bedc8..ed4444da8d 100644
--- a/meta/runtime.yml
+++ b/meta/runtime.yml
@@ -126,6 +126,16 @@ plugin_routing:
       deprecation:
         removal_version: 9.0.0
         warning_text: This module relies on the deprecated package pyrax.
+    rhn_channel:
+      deprecation:
+        removal_version: 10.0.0
+        warning_text: RHN is EOL, please contact the community.general maintainers
+          if still using this; see the module documentation for more details.
+    rhn_register:
+      deprecation:
+        removal_version: 10.0.0
+        warning_text: RHN is EOL, please contact the community.general maintainers
+          if still using this; see the module documentation for more details.
     database.aerospike.aerospike_migrations:
       redirect: community.general.aerospike_migrations
       deprecation:
diff --git a/plugins/modules/rhn_channel.py b/plugins/modules/rhn_channel.py
index e544af51ea..5a89a3a3e4 100644
--- a/plugins/modules/rhn_channel.py
+++ b/plugins/modules/rhn_channel.py
@@ -67,6 +67,16 @@ options:
         type: bool
         default: true
         version_added: '0.2.0'
+deprecated:
+    removed_in: 10.0.0
+    why: |
+      RHN hosted at redhat.com was discontinued years ago, and Spacewalk 5
+      (which uses RHN) is EOL since 2020, May 31st; while this module could
+      work on Uyuni / SUSE Manager (fork of Spacewalk 5), we have not heard
+      about anyone using it in those setups.
+    alternative: |
+      Contact the community.general maintainers to report the usage of this
+      module, and potentially step up to maintain it.
 '''
 
 EXAMPLES = '''
diff --git a/plugins/modules/rhn_register.py b/plugins/modules/rhn_register.py
index 1fe9297d2b..e72be60247 100644
--- a/plugins/modules/rhn_register.py
+++ b/plugins/modules/rhn_register.py
@@ -88,6 +88,16 @@ options:
             - If C(true), the registered node will not upload its installed packages information to Satellite server.
         type: bool
         default: false
+deprecated:
+    removed_in: 10.0.0
+    why: |
+      RHN hosted at redhat.com was discontinued years ago, and Spacewalk 5
+      (which uses RHN) is EOL since 2020, May 31st; while this module could
+      work on Uyuni / SUSE Manager (fork of Spacewalk 5), we have not heard
+      about anyone using it in those setups.
+    alternative: |
+      Contact the community.general maintainers to report the usage of this
+      module, and potentially step up to maintain it.
 '''
 
 EXAMPLES = r'''