diff --git a/java/res/values/donottranslate.xml b/java/res/values/donottranslate.xml
index b25a208..d4d6385 100644
--- a/java/res/values/donottranslate.xml
+++ b/java/res/values/donottranslate.xml
@@ -37,6 +37,12 @@
         <item>en_US</item>
         <item>en_GB</item>
         <item>es_US</item>
+        <item>hi_ZZ</item>
+    </string-array>
+
+    <!-- Subtype locale whose name should be displayed in Locale.ROOT. -->
+    <string-array name="subtype_locale_displayed_in_root_locale">
+        <item>hi_ZZ</item>
     </string-array>
 
     <!-- Generic subtype label -->
diff --git a/java/res/values/strings.xml b/java/res/values/strings.xml
index cb03260..c3f5cf4 100644
--- a/java/res/values/strings.xml
+++ b/java/res/values/strings.xml
@@ -184,6 +184,8 @@
     <!-- Description for Spanish (US) keyboard subtype [CHAR LIMIT=25]
          (US) should be an abbreviation of United States to fit in the CHAR LIMIT. -->
     <string name="subtype_es_US">Spanish (US)</string>
+    <!-- Description for Hinglish (https://en.wikipedia.org/wiki/Hinglish) keyboard subtype [CHAR LIMIT=25] -->
+    <string name="subtype_hi_ZZ">Hinglish</string>
     <!-- Description for English (UK) keyboard subtype with explicit keyboard layout [CHAR LIMIT=25]
          (UK) should be an abbreviation of United Kingdom to fit in the CHAR LIMIT.
          This should be identical to subtype_en_GB aside from the trailing (%s). -->
@@ -196,6 +198,9 @@
          (US) should be an abbreviation of United Statesn to fit in the CHAR LIMIT.
          This should be identical to subtype_es_US aside from the trailing (%s). -->
     <string name="subtype_with_layout_es_US">Spanish (US) (<xliff:g id="KEYBOARD_LAYOUT" example="QWERTY">%s</xliff:g>)</string>
+    <!-- Description for Hinglish (https://en.wikipedia.org/wiki/Hinglish) keyboard subtype with explicit keyboard layout [CHAR LIMIT=25]
+         This should be identical to subtype_hi_ZZ aside from the trailing (%s). -->
+    <string name="subtype_with_layout_hi_ZZ">Hinglish (<xliff:g id="KEYBOARD_LAYOUT" example="QWERTY">%s</xliff:g>)</string>
     <!-- Description for "LANGUAGE_NAME" (Traditional) keyboard subtype [CHAR LIMIT=25]
          (Traditional) can be an abbreviation to fit in the CHAR LIMIT. -->
     <string name="subtype_generic_traditional"><xliff:g id="LANGUAGE_NAME" example="Nepali">%s</xliff:g> (Traditional)</string>
diff --git a/java/res/xml/key_styles_currency.xml b/java/res/xml/key_styles_currency.xml
index cfe9a90..2ce6318 100644
--- a/java/res/xml/key_styles_currency.xml
+++ b/java/res/xml/key_styles_currency.xml
@@ -80,6 +80,7 @@
         </case>
         <!-- fa: Persian (Rial and Afgahni)
              hi: Hindi (Indian Rupee)
+             hi_ZZ: Hinglish (Indian Rupee)
              iw: Hebrew (New Sheqel)
              lo: Lao (Kip)
              mn: Mongolian (Tugrik)
diff --git a/java/res/xml/method.xml b/java/res/xml/method.xml
index d71e88b..74ac79f 100644
--- a/java/res/xml/method.xml
+++ b/java/res/xml/method.xml
@@ -52,6 +52,7 @@
     gl_ES: Galician (Spain)/spanish
     hi: Hindi/hindi
     hi: Hindi/hindi_compact
+    (hi_ZZ: Hinglish/qwerty)  # This is a preliminary keyboard layout.
     hr: Croatian/qwertz
     hu: Hungarian/qwertz
     hy_AM: Armenian (Armenia) Phonetic/armenian_phonetic
@@ -354,6 +355,16 @@
             android:imeSubtypeExtraValue="KeyboardLayoutSet=hindi_compact,EmojiCapable"
             android:isAsciiCapable="false"
     />
+    <!-- TODO: This Hinglish keyboard is a preliminary layout.
+               This isn't based on the final specification. -->
+    <subtype android:icon="@drawable/ic_ime_switcher_dark"
+            android:label="@string/subtype_hi_ZZ"
+            android:subtypeId="0x352eb37c"
+            android:imeSubtypeLocale="hi_ZZ"
+            android:imeSubtypeMode="keyboard"
+            android:imeSubtypeExtraValue="AsciiCapable,KeyboardLayoutSet=qwerty,EmojiCapable"
+            android:isAsciiCapable="true"
+    />
     <subtype android:icon="@drawable/ic_ime_switcher_dark"
             android:label="@string/subtype_generic"
             android:subtypeId="0x35b7526a"