diff --git a/src/Symfony/Component/Form/Extension/Core/ArrayInclusionFilter.php b/src/Symfony/Component/Form/Extension/Core/ArrayInclusionFilter.php
new file mode 100644
index 0000000000000..f4072d6219cc8
--- /dev/null
+++ b/src/Symfony/Component/Form/Extension/Core/ArrayInclusionFilter.php
@@ -0,0 +1,44 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Form\Extension\Core;
+
+/**
+ * @author Sebastiaan Stok <s.stok@rollerscapes.net>
+ *
+ * @internal
+ */
+final class ArrayInclusionFilter
+{
+    private $filterCallable;
+    private $acceptedKeys;
+
+    public function __construct($filter)
+    {
+        if (\is_array($filter)) {
+            $this->acceptedKeys = array_fill_keys($filter, true);
+            $this->filterCallable = $this;
+        } else {
+            $this->acceptedKeys = [];
+            $this->filterCallable = $filter;
+        }
+    }
+
+    public function filter(array $choices)
+    {
+        return array_filter($choices, $this->filterCallable, ARRAY_FILTER_USE_BOTH);
+    }
+
+    public function __invoke($v, $k)
+    {
+        return isset($this->acceptedKeys[$k]);
+    }
+}
diff --git a/src/Symfony/Component/Form/Extension/Core/Type/CountryType.php b/src/Symfony/Component/Form/Extension/Core/Type/CountryType.php
index e7c41e0cec46f..3ac05b25c7340 100644
--- a/src/Symfony/Component/Form/Extension/Core/Type/CountryType.php
+++ b/src/Symfony/Component/Form/Extension/Core/Type/CountryType.php
@@ -15,6 +15,7 @@
 use Symfony\Component\Form\ChoiceList\ArrayChoiceList;
 use Symfony\Component\Form\ChoiceList\Loader\ChoiceLoaderInterface;
 use Symfony\Component\Form\ChoiceList\Loader\IntlCallbackChoiceLoader;
+use Symfony\Component\Form\Extension\Core\ArrayInclusionFilter;
 use Symfony\Component\Intl\Intl;
 use Symfony\Component\OptionsResolver\Options;
 use Symfony\Component\OptionsResolver\OptionsResolver;
@@ -42,16 +43,29 @@ public function configureOptions(OptionsResolver $resolver)
         $resolver->setDefaults(array(
             'choice_loader' => function (Options $options) {
                 $choiceTranslationLocale = $options['choice_translation_locale'];
+                $supportedCountries = $options['supported_countries'];
 
-                return new IntlCallbackChoiceLoader(function () use ($choiceTranslationLocale) {
-                    return array_flip(Intl::getRegionBundle()->getCountryNames($choiceTranslationLocale));
+                return new IntlCallbackChoiceLoader(function () use ($choiceTranslationLocale, $supportedCountries) {
+                    $countries = Intl::getRegionBundle()->getCountryNames($choiceTranslationLocale);
+
+                    if (null !== $supportedCountries) {
+                        if (is_array($supportedCountries)) {
+                            $supportedCountries = array_map('strtoupper', $supportedCountries);
+                        }
+
+                        $countries = (new ArrayInclusionFilter($supportedCountries))->filter($countries);
+                    }
+
+                    return array_flip($countries);
                 });
             },
             'choice_translation_domain' => false,
             'choice_translation_locale' => null,
+            'supported_countries' => null,
         ));
 
         $resolver->setAllowedTypes('choice_translation_locale', array('null', 'string'));
+        $resolver->setAllowedTypes('supported_countries', array('null', 'string[]'));
     }
 
     /**
diff --git a/src/Symfony/Component/Form/Extension/Core/Type/LocaleType.php b/src/Symfony/Component/Form/Extension/Core/Type/LocaleType.php
index c0de1c933bd17..d07eaad761411 100644
--- a/src/Symfony/Component/Form/Extension/Core/Type/LocaleType.php
+++ b/src/Symfony/Component/Form/Extension/Core/Type/LocaleType.php
@@ -15,6 +15,7 @@
 use Symfony\Component\Form\ChoiceList\ArrayChoiceList;
 use Symfony\Component\Form\ChoiceList\Loader\ChoiceLoaderInterface;
 use Symfony\Component\Form\ChoiceList\Loader\IntlCallbackChoiceLoader;
+use Symfony\Component\Form\Extension\Core\ArrayInclusionFilter;
 use Symfony\Component\Intl\Intl;
 use Symfony\Component\OptionsResolver\Options;
 use Symfony\Component\OptionsResolver\OptionsResolver;
@@ -42,16 +43,25 @@ public function configureOptions(OptionsResolver $resolver)
         $resolver->setDefaults(array(
             'choice_loader' => function (Options $options) {
                 $choiceTranslationLocale = $options['choice_translation_locale'];
+                $supportedLocales = $options['supported_locales'];
 
-                return new IntlCallbackChoiceLoader(function () use ($choiceTranslationLocale) {
-                    return array_flip(Intl::getLocaleBundle()->getLocaleNames($choiceTranslationLocale));
+                return new IntlCallbackChoiceLoader(function () use ($choiceTranslationLocale, $supportedLocales) {
+                    $locales = Intl::getLocaleBundle()->getLocaleNames($choiceTranslationLocale);
+
+                    if (null !== $supportedLocales) {
+                        $locales = (new ArrayInclusionFilter($supportedLocales))->filter($locales);
+                    }
+
+                    return array_flip($locales);
                 });
             },
             'choice_translation_domain' => false,
             'choice_translation_locale' => null,
+            'supported_locales' => null,
         ));
 
         $resolver->setAllowedTypes('choice_translation_locale', array('null', 'string'));
+        $resolver->setAllowedTypes('supported_locales', array('null', 'string[]', 'Closure'));
     }
 
     /**
diff --git a/src/Symfony/Component/Form/Tests/Extension/Core/Type/CountryTypeTest.php b/src/Symfony/Component/Form/Tests/Extension/Core/Type/CountryTypeTest.php
index a8e9ddc7d34d9..775d5fd37d30c 100644
--- a/src/Symfony/Component/Form/Tests/Extension/Core/Type/CountryTypeTest.php
+++ b/src/Symfony/Component/Form/Tests/Extension/Core/Type/CountryTypeTest.php
@@ -57,6 +57,20 @@ public function testChoiceTranslationLocaleOption()
         $this->assertContains(new ChoiceView('MY', 'MY', 'Малайзія'), $choices, '', false, false);
     }
 
+    public function testAcceptedCountriesIsConfigurable()
+    {
+        $choices = $this->factory
+            ->create(static::TESTED_TYPE, null, array(
+                'supported_countries' => array('GB', 'DE'),
+            ))
+            ->createView()->vars['choices'];
+
+        $this->assertContains(new ChoiceView('DE', 'DE', 'Germany'), $choices, '', false, false);
+        $this->assertContains(new ChoiceView('GB', 'GB', 'United Kingdom'), $choices, '', false, false);
+        $this->assertNotContains(new ChoiceView('US', 'US', 'United States'), $choices, '', false, false);
+        $this->assertNotContains(new ChoiceView('FR', 'FR', 'France'), $choices, '', false, false);
+    }
+
     public function testUnknownCountryIsNotIncluded()
     {
         $choices = $this->factory->create(static::TESTED_TYPE, 'country')
diff --git a/src/Symfony/Component/Form/Tests/Extension/Core/Type/LocaleTypeTest.php b/src/Symfony/Component/Form/Tests/Extension/Core/Type/LocaleTypeTest.php
index ab0dfa4bf17d3..e624705c8efb4 100644
--- a/src/Symfony/Component/Form/Tests/Extension/Core/Type/LocaleTypeTest.php
+++ b/src/Symfony/Component/Form/Tests/Extension/Core/Type/LocaleTypeTest.php
@@ -35,6 +35,29 @@ public function testLocalesAreSelectable()
         $this->assertContains(new ChoiceView('zh_Hant_MO', 'zh_Hant_MO', 'Chinese (Traditional, Macau SAR China)'), $choices, '', false, false);
     }
 
+    public function testSupportedLocalesAreConfigurableByArray()
+    {
+        $choices = $this->factory->create(static::TESTED_TYPE, null, array('supported_locales' => array('en', 'zh_Hant_MO')))
+            ->createView()->vars['choices'];
+
+        $this->assertContains(new ChoiceView('en', 'en', 'English'), $choices, '', false, false);
+        $this->assertContains(new ChoiceView('zh_Hant_MO', 'zh_Hant_MO', 'Chinese (Traditional, Macau SAR China)'), $choices, '', false, false);
+        $this->assertNotContains(new ChoiceView('en_GB', 'en_GB', 'English (United Kingdom)'), $choices, '', false, false);
+        $this->assertNotContains(new ChoiceView('af_ZA', 'af_ZA', 'Afrikaans (South Africa)'), $choices, '', false, false);
+    }
+
+    public function testSupportedLocalesAreConfigurableByClosure()
+    {
+        $choices = $this->factory->create(static::TESTED_TYPE, null, array('supported_locales' => function ($v, $k) {
+            return $k === 'zh_Hant_MO' || strpos($k, 'en') === 0;
+        }))->createView()->vars['choices'];
+
+        $this->assertContains(new ChoiceView('en', 'en', 'English'), $choices, '', false, false);
+        $this->assertContains(new ChoiceView('zh_Hant_MO', 'zh_Hant_MO', 'Chinese (Traditional, Macau SAR China)'), $choices, '', false, false);
+        $this->assertContains(new ChoiceView('en_GB', 'en_GB', 'English (United Kingdom)'), $choices, '', false, false);
+        $this->assertNotContains(new ChoiceView('af_ZA', 'af_ZA', 'Afrikaans (South Africa)'), $choices, '', false, false);
+    }
+
     /**
      * @requires extension intl
      */