diff --git a/frappe/database/query.py b/frappe/database/query.py
index 2f2fa5f749..a7c305ec19 100644
--- a/frappe/database/query.py
+++ b/frappe/database/query.py
@@ -155,8 +155,10 @@ FUNCTION_CALL_PATTERN = re.compile(r"^\s*[a-zA-Z_][a-zA-Z0-9_]*\s*\(", flags=re.
 #   - `tabTable Name`.`field` (spaces in table name)
 #   - `tabTable-Field`.`field` (hyphens in table name)
 #   - Any of above with aliases: ... as alias
+#   - Single-quoted aliases with colons (used by reportview child fields):
+#     - ... as 'Child:field'
 ALLOWED_FIELD_PATTERN = re.compile(
-	r"^(?:(`[\w\s-]+`|\w+)\.)?(`\w+`|\w+)(?:\s+as\s+(?:`[\w\s-]+`|\w+))?$",
+	r"^(?:(`[\w\s-]+`|\w+)\.)?(`\w+`|\w+)(?:\s+as\s+(?:`[\w\s-]+`|'[\w\s:-]+'|\w+))?$",
 	flags=re.ASCII | re.IGNORECASE,
 )
 
@@ -963,7 +965,7 @@ class Engine:
 			parts = re.split(r"\s+as\s+", field, flags=re.IGNORECASE)
 			if len(parts) > 1:
 				field_part = parts[0].strip()
-				alias = parts[1].strip().strip('`"')  # Remove potential quotes from alias
+				alias = parts[1].strip().strip("`\"'")  # Remove potential quotes from alias
 
 		match = FIELD_PARSE_REGEX.match(field_part)
 
@@ -1707,7 +1709,7 @@ class DynamicTableField:
 				parts = re.split(r"\s+as\s+", field, flags=re.IGNORECASE)
 				if len(parts) > 1:
 					field_part = parts[0].strip()
-					alias = parts[-1].strip().strip('`"')  # Get last part as alias
+					alias = parts[-1].strip().strip("`\"'")  # Get last part as alias
 					field = field_part  # Use the part before alias for further parsing
 
 			child_match = None
diff --git a/frappe/tests/test_db_query.py b/frappe/tests/test_db_query.py
index e52fd6ee5b..5110671578 100644
--- a/frappe/tests/test_db_query.py
+++ b/frappe/tests/test_db_query.py
@@ -1298,6 +1298,20 @@ class TestReportView(IntegrationTestCase):
 		user.remove_roles("Blogger", "Website Manager")
 		user.add_roles(*user_roles)
 
+	def test_reportview_child_table_alias(self):
+		from frappe.desk import reportview
+
+		frappe.local.form_dict = frappe._dict(
+			{
+				"doctype": "DocType",
+				"fields": ["name", "`tabDocField`.`fieldname` as 'DocField:fieldname'"],
+				"limit": 1,
+			}
+		)
+		response = reportview.get()
+		self.assertIn("DocField:fieldname", response["keys"])
+		self.assertNotIn("'DocField:fieldname'", response["keys"])
+
 	def test_reportview_get_aggregation(self):
 		# test aggregation based on child table field
 		frappe.local.request = frappe._dict()