diff --git a/class-two-factor-core.php b/class-two-factor-core.php
index d98cbfe6..81d6aa4c 100644
--- a/class-two-factor-core.php
+++ b/class-two-factor-core.php
@@ -28,6 +28,15 @@ class Two_Factor_Core {
 	 */
 	const ENABLED_PROVIDERS_USER_META_KEY = '_two_factor_enabled_providers';
 
+	/**
+	 * The site-wide enabled providers option key.
+	 *
+	 * @since 0.16.1
+	 *
+	 * @type string
+	 */
+	const ENABLED_PROVIDERS_OPTION_KEY = 'two_factor_enabled_providers';
+
 	/**
 	 * The user meta nonce key.
 	 *
@@ -189,7 +198,10 @@ public static function uninstall() {
 			self::USER_PASSWORD_WAS_RESET_KEY,
 		);
 
-		$option_keys = array();
+		// Keep this updated as plugin-level options are added or removed.
+		$option_keys = array(
+			self::ENABLED_PROVIDERS_OPTION_KEY,
+		);
 
 		$providers = self::get_default_providers();
 
diff --git a/settings/class-two-factor-settings.php b/settings/class-two-factor-settings.php
index 48018835..9e7fa886 100644
--- a/settings/class-two-factor-settings.php
+++ b/settings/class-two-factor-settings.php
@@ -39,7 +39,7 @@ public static function render_settings_page() {
 			// Remove empty values.
 			$enabled = array_values( array_filter( $posted, 'strlen' ) );
 
-			update_option( 'two_factor_enabled_providers', array_values( array_unique( $enabled ) ) );
+			update_option( Two_Factor_Core::ENABLED_PROVIDERS_OPTION_KEY, array_values( array_unique( $enabled ) ) );
 
 			echo '<div class="updated"><p>' . esc_html__( 'Settings saved.', 'two-factor' ) . '</p></div>';
 		}
@@ -55,7 +55,7 @@ public static function render_settings_page() {
 
 		// Default to all providers enabled when the option has never been saved.
 		$all_provider_keys = array_keys( $provider_instances );
-		$saved_enabled     = get_option( 'two_factor_enabled_providers', $all_provider_keys );
+		$saved_enabled     = get_option( Two_Factor_Core::ENABLED_PROVIDERS_OPTION_KEY, $all_provider_keys );
 
 		echo '<div class="wrap two-factor-settings">';
 		echo '<h1>' . esc_html__( 'Two-Factor Settings', 'two-factor' ) . '</h1>';
diff --git a/tests/class-two-factor-core.php b/tests/class-two-factor-core.php
index c265f6aa..40467b6a 100644
--- a/tests/class-two-factor-core.php
+++ b/tests/class-two-factor-core.php
@@ -1890,6 +1890,28 @@ function ( $providers ) {
 		remove_all_filters( 'two_factor_providers' );
 	}
 
+	/**
+	 * Plugin uninstall removes the site-wide enabled providers option.
+	 *
+	 * @covers Two_Factor_Core::uninstall
+	 */
+	public function test_uninstall_removes_enabled_providers_option() {
+		update_option( Two_Factor_Core::ENABLED_PROVIDERS_OPTION_KEY, array( 'Two_Factor_Email' ) );
+
+		$this->assertSame(
+			array( 'Two_Factor_Email' ),
+			get_option( Two_Factor_Core::ENABLED_PROVIDERS_OPTION_KEY ),
+			'Enabled providers option was set'
+		);
+
+		Two_Factor_Core::uninstall();
+
+		$this->assertFalse(
+			get_option( Two_Factor_Core::ENABLED_PROVIDERS_OPTION_KEY ),
+			'Enabled providers option was deleted during uninstall'
+		);
+	}
+
 	/**
 	 * Test delete_login_nonce removes the nonce.
 	 *
diff --git a/two-factor.php b/two-factor.php
index d1cc2413..b1db2039 100644
--- a/two-factor.php
+++ b/two-factor.php
@@ -129,7 +129,7 @@ function two_factor_render_settings_page() {
  * @return array|null
  */
 function two_factor_get_enabled_providers_option() {
-	$enabled = get_option( 'two_factor_enabled_providers', null );
+	$enabled = get_option( Two_Factor_Core::ENABLED_PROVIDERS_OPTION_KEY, null );
 	if ( null === $enabled ) {
 		return null; // Never saved — allow everything.
 	}