diff --git a/api/locales/mn/auth.json b/api/locales/mn/auth.json
new file mode 100644
index 00000000..e19547a0
--- /dev/null
+++ b/api/locales/mn/auth.json
@@ -0,0 +1,16 @@
+{
+	"login": {
+		"INVALID_LOGIN": "E-Mail or Phone not found",
+		"INVALID_PASSWORD": "Invalid Password",
+		"ACCOUNT_DISABLED": "This account is disabled"
+	},
+	"register": {
+		"REGISTRATION_DISABLED": "New user registration is disabled",
+		"INVITE_ONLY": "You must be invited to register",
+		"EMAIL_INVALID": "Invalid Email",
+		"EMAIL_ALREADY_REGISTERED": "Email is already registered",
+		"DATE_OF_BIRTH_UNDERAGE": "You need to be {{years}} years or older",
+		"CONSENT_REQUIRED": "You must agree to the Terms of Service and Privacy Policy.",
+		"USERNAME_TOO_MANY_USERS": "Too many users have this username, please try another"
+	}
+}