diff --git a/thirdparty/Zend/Locale.php b/thirdparty/Zend/Locale.php
index 71534450d..0e1ca0e55 100644
--- a/thirdparty/Zend/Locale.php
+++ b/thirdparty/Zend/Locale.php
@@ -115,7 +115,11 @@ class Zend_Locale
         'wal_ET'=> true, 'wal'   => true, 'wo_SN' => true, 'wo'    => true, 'xh_ZA' => true,
         'xh'    => true, 'yo_NG' => true, 'yo'    => true, 'zh_CN' => true, 'zh_HK' => true,
         'zh_MO' => true, 'zh_SG' => true, 'zh_TW' => true, 'zh'    => true, 'zu_ZA' => true,
-        'zu'    => true
+        'zu'    => true,
+        // CUSTOM SilverStripe Add Maori locales.
+        // Remove once updating Zend_Locale to 2.0 (which uses CLDR 1.9), see
+        // https://github.com/zendframework/zf2/tree/master/resources/cldr/main
+        'mi' => true, 'mi_NZ' => true,
     );
 
     /**
@@ -172,7 +176,11 @@ class Zend_Locale
         'TZ' => 'sw_TZ', 'UA' => 'uk_UA', 'UG' => 'sw_UG', 'UM' => 'en_UM', 'US' => 'en_US',
         'UY' => 'es_UY', 'UZ' => 'uz_Cyrl_UZ', 'VA' => 'it_VA', 'VC' => 'en_VC', 'VE' => 'es_VE',
         'VG' => 'en_VG', 'VI' => 'en_VI', 'VU' => 'bi_VU', 'WF' => 'wls_WF', 'WS' => 'sm_WS',
-        'YE' => 'ar_YE', 'YT' => 'swb_YT', 'ZA' => 'en_ZA', 'ZM' => 'en_ZM', 'ZW' => 'sn_ZW'
+        'YE' => 'ar_YE', 'YT' => 'swb_YT', 'ZA' => 'en_ZA', 'ZM' => 'en_ZM', 'ZW' => 'sn_ZW',
+        // CUSTOM SilverStripe Add Maori locales.
+        // Remove once updating Zend_Locale to 2.0 (which uses CLDR 1.9), see
+        // https://github.com/zendframework/zf2/tree/master/resources/cldr/main
+        'MI' => 'mi_NZ'
     );
 
     /**
diff --git a/thirdparty/Zend/Locale/Data/mi.xml b/thirdparty/Zend/Locale/Data/mi.xml
new file mode 100644
index 000000000..eddf9eb41
--- /dev/null
+++ b/thirdparty/Zend/Locale/Data/mi.xml
@@ -0,0 +1,51 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+
+<ldml>
+	<identity>
+		<version number="$Revision: 4599 $"/>
+		<generation date="$Date: 2010-02-05 18:15:28 -0600 (Fri, 05 Feb 2010) $"/>
+		<language type="mi"/>
+	</identity>
+	<characters>
+		<exemplarCharacters>[a ā e ē h i ī k m n {ng} o ō p r t u ū w {wh}]</exemplarCharacters>
+		<exemplarCharacters type="auxiliary">[b c d f g j l q s v x y z]</exemplarCharacters>
+		<exemplarCharacters type="index">[A E H I K M N O P R T U W]</exemplarCharacters>
+	</characters>
+	<dates>
+		<calendars>
+			<calendar type="gregorian">
+				<months>
+					<monthContext type="format">
+						<monthWidth type="wide">
+							<month type="1">Hānuere</month>
+							<month type="2">Pēpuere</month>
+							<month type="3">Māehe</month>
+							<month type="4">Āperira</month>
+							<month type="5">Mei</month>
+							<month type="6">Hune</month>
+							<month type="7">Hūrae</month>
+							<month type="8">Ākuhata</month>
+							<month type="9">Hepetema</month>
+							<month type="10">Oketopa</month>
+							<month type="11">Noema</month>
+							<month type="12">Tīhema</month>
+						</monthWidth>
+					</monthContext>
+				</months>
+				<days>
+					<dayContext type="format">
+						<dayWidth type="wide">
+							<day type="sun">Rātapu</day>
+							<day type="mon">Mane</day>
+							<day type="tue">Tūrei</day>
+							<day type="wed">Wenerei</day>
+							<day type="thu">Tāite</day>
+							<day type="fri">Paraire</day>
+							<day type="sat">Hātarei</day>
+						</dayWidth>
+					</dayContext>
+				</days>
+			</calendar>
+		</calendars>
+	</dates>
+</ldml>
\ No newline at end of file
diff --git a/thirdparty/Zend/Locale/Data/mi_NZ.xml b/thirdparty/Zend/Locale/Data/mi_NZ.xml
new file mode 100644
index 000000000..b1584a36b
--- /dev/null
+++ b/thirdparty/Zend/Locale/Data/mi_NZ.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+
+<ldml>
+	<identity>
+		<version number="$Revision: 4421 $"/>
+		<generation date="$Date: 2009-11-24 01:10:06 -0600 (Tue, 24 Nov 2009) $"/>
+		<language type="mi"/>
+		<territory type="NZ"/>
+	</identity>
+</ldml>
\ No newline at end of file