diff --git a/changelogs/fragments/11765-group4-locale.yml b/changelogs/fragments/11765-group4-locale.yml
new file mode 100644
index 0000000000..7ef548fb22
--- /dev/null
+++ b/changelogs/fragments/11765-group4-locale.yml
@@ -0,0 +1,4 @@
+bugfixes:
+  - dconf - ensure ``LANGUAGE=C`` and ``LC_ALL=C`` are set when running commands that parse output (https://github.com/ansible-collections/community.general/issues/11737, https://github.com/ansible-collections/community.general/pull/11765).
+  - pkgng - ensure ``LANGUAGE=C`` and ``LC_ALL=C`` are set when running commands that parse output (https://github.com/ansible-collections/community.general/issues/11737, https://github.com/ansible-collections/community.general/pull/11765).
+  - terraform - ensure ``LANGUAGE=C`` and ``LC_ALL=C`` are set when running commands that parse output (https://github.com/ansible-collections/community.general/issues/11737, https://github.com/ansible-collections/community.general/pull/11765).
diff --git a/plugins/modules/dconf.py b/plugins/modules/dconf.py
index e79004ad0d..8db0547bdc 100644
--- a/plugins/modules/dconf.py
+++ b/plugins/modules/dconf.py
@@ -311,7 +311,7 @@ class DconfPreference:
         """
         command = [self.dconf_bin, "read", key]
 
-        rc, out, err = self.module.run_command(command)
+        rc, out, err = self.module.run_command(command, environ_update={"LANGUAGE": "C", "LC_ALL": "C"})
 
         if rc != 0:
             self.module.fail_json(msg=f"dconf failed while reading the value with error: {err}", out=out, err=err)
diff --git a/plugins/modules/pkgng.py b/plugins/modules/pkgng.py
index d9db694c16..e7eec1c463 100644
--- a/plugins/modules/pkgng.py
+++ b/plugins/modules/pkgng.py
@@ -156,7 +156,7 @@ def query_update(module, run_pkgng, name):
 
 
 def pkgng_older_than(module, pkgng_path, compare_version):
-    rc, out, err = module.run_command([pkgng_path, "-v"])
+    rc, out, err = module.run_command([pkgng_path, "-v"], environ_update={"LANGUAGE": "C", "LC_ALL": "C"})
     version = [int(x) for x in re.split(r"[\._]", out)]
 
     i = 0
@@ -455,7 +455,7 @@ def main():
         ):
             args = ("-g",) + args
 
-        pkgng_env = {"BATCH": "yes"}
+        pkgng_env = {"BATCH": "yes", "LANGUAGE": "C", "LC_ALL": "C"}
 
         if p["ignore_osver"]:
             pkgng_env["IGNORE_OSVERSION"] = "yes"
diff --git a/plugins/modules/terraform.py b/plugins/modules/terraform.py
index 2588736b69..e9aeea86e9 100644
--- a/plugins/modules/terraform.py
+++ b/plugins/modules/terraform.py
@@ -528,6 +528,8 @@ def main():
         supports_check_mode=True,
     )
 
+    module.run_command_environ_update = {"LANGUAGE": "C", "LC_ALL": "C"}
+
     project_path = module.params.get("project_path")
     bin_path = module.params.get("binary_path")
     plugin_paths = module.params.get("plugin_paths")