diff --git a/changelogs/fragments/6203-add-append-option-to-ipa-hostgroup.yml b/changelogs/fragments/6203-add-append-option-to-ipa-hostgroup.yml
new file mode 100644
index 00000000000..1de6853efce
--- /dev/null
+++ b/changelogs/fragments/6203-add-append-option-to-ipa-hostgroup.yml
@@ -0,0 +1,2 @@
+minor_changes:
+  - ipa_hostgroup - add ``append`` parameter for adding a new hosts to existing hostgroups without changing existing hostgroup members (https://github.com/ansible-collections/community.general/pull/6203).
diff --git a/plugins/modules/ipa_hostgroup.py b/plugins/modules/ipa_hostgroup.py
index dcada0380c5..12232de89cf 100644
--- a/plugins/modules/ipa_hostgroup.py
+++ b/plugins/modules/ipa_hostgroup.py
@@ -20,6 +20,13 @@
   diff_mode:
     support: none
 options:
+  append:
+    description:
+    - If C(true), add the listed I(host) to the I(hostgroup).
+    - If C(false), only the listed I(host) will be in I(hostgroup), removing any other hosts.
+    default: false
+    type: bool
+    version_added: 6.6.0
   cn:
     description:
     - Name of host-group.
@@ -147,6 +154,7 @@ def ensure(module, client):
     state = module.params['state']
     host = module.params['host']
     hostgroup = module.params['hostgroup']
+    append = module.params['append']
 
     ipa_hostgroup = client.hostgroup_find(name=name)
     module_hostgroup = get_hostgroup_dict(description=module.params['description'])
@@ -168,14 +176,18 @@ def ensure(module, client):
                     client.hostgroup_mod(name=name, item=data)
 
         if host is not None:
-            changed = client.modify_if_diff(name, ipa_hostgroup.get('member_host', []), [item.lower() for item in host],
-                                            client.hostgroup_add_host, client.hostgroup_remove_host) or changed
+            changed = client.modify_if_diff(name, ipa_hostgroup.get('member_host', []),
+                                            [item.lower() for item in host],
+                                            client.hostgroup_add_host,
+                                            client.hostgroup_remove_host,
+                                            append=append) or changed
 
         if hostgroup is not None:
             changed = client.modify_if_diff(name, ipa_hostgroup.get('member_hostgroup', []),
                                             [item.lower() for item in hostgroup],
                                             client.hostgroup_add_hostgroup,
-                                            client.hostgroup_remove_hostgroup) or changed
+                                            client.hostgroup_remove_hostgroup,
+                                            append=append) or changed
 
     else:
         if ipa_hostgroup:
@@ -192,7 +204,8 @@ def main():
                          description=dict(type='str'),
                          host=dict(type='list', elements='str'),
                          hostgroup=dict(type='list', elements='str'),
-                         state=dict(type='str', default='present', choices=['present', 'absent', 'enabled', 'disabled']))
+                         state=dict(type='str', default='present', choices=['present', 'absent', 'enabled', 'disabled']),
+                         append=dict(type='bool', default=False))
 
     module = AnsibleModule(argument_spec=argument_spec,
                            supports_check_mode=True)