diff --git a/user-create.sh b/user-create.sh
old mode 100644
new mode 100755
index cd6fc60..ae2cde8
--- a/user-create.sh
+++ b/user-create.sh
@@ -74,7 +74,7 @@ while IFS="," read -r username email role superadmin; do
 
 	else
 
-		# Output any errors from WPCLI.
+		# Output any errors from WPCLI for the user creation.
 		>&2
 
 	fi
diff --git a/user-rename.sh b/user-rename.sh
new file mode 100755
index 0000000..b64b5ec
--- /dev/null
+++ b/user-rename.sh
@@ -0,0 +1,65 @@
+#!/bin/env bash
+
+# Renames user(s) to any given string.
+#
+# Use caution! The new name can be a non-standard WP username, with any characters.
+
+source 'source/includes.sh';
+
+# Prompt the user for the path to a CSV with username and email.
+read -r -p 'Path to CSV file with users [./user-rename.csv]: ' csv_path;
+
+# Set default value if empty string provided.
+[[ -z "$csv_path" ]] && csv_path='./user-rename.csv';
+
+# Ensure the file actually exists.
+if [[ ! -f "$csv_path" ]]; then
+
+	echo "The file you provided does not exist: ${csv_path}";
+	exit 1;
+
+fi
+
+######################################################
+# Read the CSV and update the user(s)
+######################################################
+
+# Init the user counter.
+user_count=0;
+
+# Loop over the entire CSV file.
+while IFS="," read -r old_username new_username; do
+
+	echo "Changing username: ${old_username}";
+
+	# Ensure the user exists by getting the user ID.
+	if user_id=$(wp_skip_all user get "${old_username}" --field=ID >&1 ); then
+
+		# Set the SQL query for updating the current user's username and nicename.
+		user_update_query="UPDATE wp_users SET user_login = '${new_username}', user_nicename = '${new_username}' WHERE ID = '${user_id}'";
+
+		# Update the username and check the status of the change.
+		if $(wp_skip_all db query "$user_update_query" >&1 ); then
+
+			# Update the count for each successful user creation.
+			((user_count++));
+
+			echo "Changed to: ${new_username}";
+
+		else
+
+			# Output any errors from WPCLI from the query.
+			>&2
+
+		fi
+
+	else
+
+		# Output any WPCLI error related to checking if the user exists.
+		>&2;
+
+	fi
+
+done < "$csv_path"
+
+echo "Users updated: ${user_count}";