diff --git a/frappe/translate.py b/frappe/translate.py
index c23c7456e2..153ff09be1 100644
--- a/frappe/translate.py
+++ b/frappe/translate.py
@@ -1,13 +1,12 @@
 # Copyright (c) 2021, Frappe Technologies Pvt. Ltd. and Contributors
 # License: MIT. See LICENSE
 """
-	frappe.translate
-	~~~~~~~~~~~~~~~~
+frappe.translate
+~~~~~~~~~~~~~~~~
 
-	Translation tools for frappe
+Translation tools for frappe
 """
 
-
 import functools
 import io
 import itertools
@@ -136,7 +135,7 @@ def get_messages_for_boot():
 def get_all_translations(lang: str) -> dict[str, str]:
 	"""Load and return the entire translations dictionary for a language from apps + user translations.
 
-	:param lang: Language Code, e.g. `hi`
+	:param lang: Language Code, e.g. `hi` or `es-CO`
 	"""
 	if not lang:
 		return {}
@@ -144,8 +143,18 @@ def get_all_translations(lang: str) -> dict[str, str]:
 	def _merge_translations():
 		from frappe.geo.country_info import get_translated_countries
 
-		all_translations = get_translations_from_apps(lang).copy()
+		parent_lang = get_parent_language(lang)
+
+		# Get translations for parent language
+		all_translations = get_translations_from_apps(parent_lang).copy() if parent_lang else {}
+
+		# Update with child language translations (overriding parent translations)
+		all_translations.update(get_translations_from_apps(lang))
+
 		with suppress(Exception):
+			# Get translations for parent language
+			all_translations.update(get_user_translations(parent_lang) if parent_lang else {})
+			# Update with child language translations (overriding parent translations)
 			all_translations.update(get_user_translations(lang))
 			all_translations.update(get_translated_countries())
 
@@ -155,7 +164,7 @@ def get_all_translations(lang: str) -> dict[str, str]:
 		return frappe.cache.hget(MERGED_TRANSLATION_KEY, lang, generator=_merge_translations)
 	except Exception:
 		# People mistakenly call translation function on global variables
-		# where locals are not initalized, translations dont make much sense there
+		# where locals are not initialized, translations don't make much sense there
 		frappe.logger().error("Unable to load translations", exc_info=True)
 		return {}