diff --git a/src/wp-admin/includes/file.php b/src/wp-admin/includes/file.php
index 11e5f9231f..bbae7bed4d 100644
--- a/src/wp-admin/includes/file.php
+++ b/src/wp-admin/includes/file.php
@@ -2353,6 +2353,15 @@ function wp_privacy_send_personal_data_export_email( $request_id ) {
 		return new WP_Error( 'invalid_request', __( 'Invalid request ID when sending personal data export email.' ) );
 	}
 
+	// Localize message content for user; fallback to site default for visitors.
+	if ( ! empty( $request->user_id ) ) {
+		$locale = get_user_locale( $request->user_id );
+	} else {
+		$locale = get_locale();
+	}
+
+	$switched_locale = switch_to_locale( $locale );
+
 	/** This filter is documented in wp-includes/functions.php */
 	$expiration      = apply_filters( 'wp_privacy_export_expiration', 3 * DAY_IN_SECONDS );
 	$expiration_date = date_i18n( get_option( 'date_format' ), time() + $expiration );
@@ -2409,6 +2418,10 @@ All at ###SITENAME###
 		$content
 	);
 
+	if ( $switched_locale ) {
+		restore_previous_locale();
+	}
+
 	if ( ! $mail_success ) {
 		return new WP_Error( 'privacy_email_error', __( 'Unable to send personal data export email.' ) );
 	}
diff --git a/tests/phpunit/data/languages/de_DE.mo b/tests/phpunit/data/languages/de_DE.mo
index 3698ce3fda..dcfef58f48 100644
Binary files a/tests/phpunit/data/languages/de_DE.mo and b/tests/phpunit/data/languages/de_DE.mo differ
diff --git a/tests/phpunit/data/languages/de_DE.po b/tests/phpunit/data/languages/de_DE.po
index c3ff771d5e..aa97af62e9 100644
--- a/tests/phpunit/data/languages/de_DE.po
+++ b/tests/phpunit/data/languages/de_DE.po
@@ -1,8 +1,8 @@
-# Translation of 4.9.x in German
-# This file is distributed under the same license as the 4.9.x package.
+# Translation of 5.2.x in German
+# This file is distributed under the same license as the 5.2.x package.
 msgid ""
 msgstr ""
-"PO-Revision-Date: 2019-03-27 22:27+0300\n"
+"PO-Revision-Date: 2019-03-28 19:42+0300\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
@@ -53,3 +53,7 @@ msgstr "[%1$s] Aktion bestätigen: %2$s"
 #: wp-includes/user.php:3175
 msgid "[%s] Erasure Request Fulfilled"
 msgstr "[%s] Löschauftrag ausgeführt"
+
+#: wp-admin/includes/file.php:2415
+msgid "[%s] Personal Data Export"
+msgstr "[%s] Export personenbezogener Daten"
diff --git a/tests/phpunit/data/languages/es_ES.mo b/tests/phpunit/data/languages/es_ES.mo
index 3fe721e001..bd56b36d4c 100644
Binary files a/tests/phpunit/data/languages/es_ES.mo and b/tests/phpunit/data/languages/es_ES.mo differ
diff --git a/tests/phpunit/data/languages/es_ES.po b/tests/phpunit/data/languages/es_ES.po
index 40eb0a5e11..511874825e 100644
--- a/tests/phpunit/data/languages/es_ES.po
+++ b/tests/phpunit/data/languages/es_ES.po
@@ -1,8 +1,8 @@
-# Translation of Development (4.9.x) in Spanish (Spain)
-# This file is distributed under the same license as the Development (4.9.x) package.
+# Translation of Development (5.2.x) in Spanish (Spain)
+# This file is distributed under the same license as the Development (5.2.x) package.
 msgid ""
 msgstr ""
-"PO-Revision-Date: 2019-03-27 22:27+0300\n"
+"PO-Revision-Date: 2019-03-28 19:43+0300\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
@@ -49,3 +49,7 @@ msgstr "[%1$s] Confirma la acción: %2$s"
 #: wp-includes/user.php:3175
 msgid "[%s] Erasure Request Fulfilled"
 msgstr "[%s] Solicitud de borrado completada"
+
+#: wp-admin/includes/file.php:2415
+msgid "[%s] Personal Data Export"
+msgstr "[%s] Exportación de datos personales"
diff --git a/tests/phpunit/tests/privacy/wpPrivacySendPersonalDataExportEmail.php b/tests/phpunit/tests/privacy/wpPrivacySendPersonalDataExportEmail.php
index 523ec76981..a270d70b61 100644
--- a/tests/phpunit/tests/privacy/wpPrivacySendPersonalDataExportEmail.php
+++ b/tests/phpunit/tests/privacy/wpPrivacySendPersonalDataExportEmail.php
@@ -34,6 +34,24 @@ class Tests_Privacy_WpPrivacySendPersonalDataExportEmail extends WP_UnitTestCase
 	 */
 	protected static $requester_email;
 
+	/**
+	 * Request user.
+	 *
+	 * @since 5.2.0
+	 *
+	 * @var WP_User $request_user
+	 */
+	protected static $request_user;
+
+	/**
+	 * Test administrator user.
+	 *
+	 * @since 5.2.0
+	 *
+	 * @var WP_User $admin_user
+	 */
+	protected static $admin_user;
+
 	/**
 	 * Reset the mocked phpmailer instance before each test method.
 	 *
@@ -51,6 +69,7 @@ class Tests_Privacy_WpPrivacySendPersonalDataExportEmail extends WP_UnitTestCase
 	 */
 	public function tearDown() {
 		reset_phpmailer_instance();
+		restore_previous_locale();
 		parent::tearDown();
 	}
 
@@ -63,6 +82,19 @@ class Tests_Privacy_WpPrivacySendPersonalDataExportEmail extends WP_UnitTestCase
 	 */
 	public static function wpSetUpBeforeClass( $factory ) {
 		self::$requester_email = 'requester@example.com';
+		self::$request_user    = $factory->user->create_and_get(
+			array(
+				'user_email' => self::$requester_email,
+				'role'       => 'subscriber',
+			)
+		);
+		self::$admin_user      = $factory->user->create_and_get(
+			array(
+				'user_email' => 'admin@local.dev',
+				'role'       => 'administrator',
+			)
+		);
+
 		self::$request_id      = wp_create_user_request( self::$requester_email, 'export_personal_data' );
 
 		_wp_privacy_account_request_confirmed( self::$request_id );
@@ -167,4 +199,136 @@ class Tests_Privacy_WpPrivacySendPersonalDataExportEmail extends WP_UnitTestCase
 	public function modify_email_content( $email_text, $request_id ) {
 		return 'Custom content for request ID: ' . $request_id;
 	}
+
+	/**
+	 * The function should respect the user locale settings when the site uses the default locale.
+	 *
+	 * @since 5.2.0
+	 * @ticket 46056
+	 * @group l10n
+	 */
+	public function test_should_send_personal_data_export_email_in_user_locale() {
+		update_user_meta( self::$request_user->ID, 'locale', 'es_ES' );
+
+		wp_privacy_send_personal_data_export_email( self::$request_id );
+		
+		$mailer = tests_retrieve_phpmailer_instance();
+
+		$this->assertContains( 'Exportación de datos personales', $mailer->get_sent()->subject );
+	}
+
+	/**
+	 * The function should respect the user locale settings when the site does not use en_US, the administrator
+	 * uses the site's default locale, and the user has a different locale.
+	 *
+	 * @since 5.2.0
+	 * @ticket 46056
+	 * @group l10n
+	 */
+	public function test_should_send_personal_data_export_email_in_user_locale_when_site_is_not_en_us() {
+		update_option( 'WPLANG', 'es_ES' );
+		switch_to_locale( 'es_ES' );
+
+		update_user_meta( self::$request_user->ID, 'locale', 'de_DE' );
+		wp_set_current_user( self::$admin_user->ID );
+
+		wp_privacy_send_personal_data_export_email( self::$request_id );
+
+		$mailer = tests_retrieve_phpmailer_instance();
+
+		$this->assertContains( 'Export personenbezogener Daten', $mailer->get_sent()->subject );
+	}
+
+	/**
+	 * The function should respect the user locale settings when the site is not en_US, the administrator
+	 * has a different selected locale, and the user uses the site's default locale.
+	 *
+	 * @since 5.2.0
+	 * @ticket 46056
+	 * @group l10n
+	 */
+	public function test_should_send_personal_data_export_email_in_user_locale_when_admin_and_site_have_different_locales() {
+		update_option( 'WPLANG', 'es_ES' );
+		switch_to_locale( 'es_ES' );
+
+		update_user_meta( self::$admin_user->ID, 'locale', 'de_DE' );
+		wp_set_current_user( self::$admin_user->ID );
+
+		wp_privacy_send_personal_data_export_email( self::$request_id );
+
+		$mailer = tests_retrieve_phpmailer_instance();
+
+		$this->assertContains( 'Exportación de datos personales', $mailer->get_sent()->subject );
+	}
+
+	/**
+	 * The function should respect the user locale settings when the site is not en_US and both the
+	 * administrator and the user use different locales.
+	 *
+	 * @since 5.2.0
+	 * @ticket 46056
+	 * @group l10n
+	 */
+	public function test_should_send_personal_data_export_email_in_user_locale_when_both_have_different_locales_than_site() {
+		update_option( 'WPLANG', 'es_ES' );
+		switch_to_locale( 'es_ES' );
+
+		update_user_meta( self::$admin_user->ID, 'locale', 'en_US' );
+		update_user_meta( self::$request_user->ID, 'locale', 'de_DE' );
+
+		wp_set_current_user( self::$admin_user->ID );
+
+		wp_privacy_send_personal_data_export_email( self::$request_id );
+
+		$mailer = tests_retrieve_phpmailer_instance();
+
+		$this->assertContains( 'Export personenbezogener Daten', $mailer->get_sent()->subject );
+	}
+
+	/**
+	 * The function should respect the site's locale when the request is for an unregistered user and the
+	 * administrator does not use the site's locale.
+	 *
+	 * @since 5.2.0
+	 * @ticket 46056
+	 * @group l10n
+	 */
+	public function test_should_send_personal_data_export_email_in_site_locale() {
+		update_user_meta( self::$admin_user->ID, 'locale', 'es_ES' );
+		wp_set_current_user( self::$admin_user->ID );
+
+		$request_id = wp_create_user_request( 'export-user-not-registered@example.com', 'export_personal_data' );
+
+		_wp_privacy_account_request_confirmed( self::$request_id );
+		wp_privacy_send_personal_data_export_email( $request_id );
+
+		$mailer = tests_retrieve_phpmailer_instance();
+
+		$this->assertContains( 'Personal Data Export', $mailer->get_sent()->subject );
+	}
+
+	/**
+	 * The function should respect the site's locale when it is not en_US, the request is for an
+	 * unregistered user, and the administrator does not use the site's default locale.
+	 *
+	 * @since 5.2.0
+	 * @ticket 46056
+	 * @group l10n
+	 */
+	public function test_should_send_personal_data_export_email_in_site_locale_when_not_en_us_and_admin_has_different_locale() {
+		update_option( 'WPLANG', 'es_ES' );
+		switch_to_locale( 'es_ES' );
+
+		update_user_meta( self::$admin_user->ID, 'locale', 'de_DE' );
+		wp_set_current_user( self::$admin_user->ID );
+
+		$request_id = wp_create_user_request( 'export-user-not-registered@example.com', 'export_personal_data' );
+
+		_wp_privacy_account_request_confirmed( self::$request_id );
+		wp_privacy_send_personal_data_export_email( $request_id );
+
+		$mailer = tests_retrieve_phpmailer_instance();
+
+		$this->assertContains( 'Exportación de datos personales', $mailer->get_sent()->subject );
+	}
 }