diff --git a/README.md b/README.md
index 63f9010..bf0c45c 100644
--- a/README.md
+++ b/README.md
@@ -339,6 +339,18 @@ The field under validation must be a valid Vehicle identification number accordi
 
 Optional verification according to the North American check system. Default `false`.
 
+### ISO 3166-1 Country Code
+
+The field under validation must be a valid country code according to ISO 3166-1
+
+    public Intervention\Validation\Rules\Iso3166::__construct(string $format = Iso3166::ALPHA2)
+
+#### Parameters
+
+**format**
+
+The country code has three different format `ALPHA2`, `ALPHA3` or `NUMERIC`. Select the format you want to check. Default `Iso3166::ALPHA2`.
+
 ## Development & Testing
 
 With this package comes a Docker image to build a test suite container. To
diff --git a/src/Rules/Iso3166.php b/src/Rules/Iso3166.php
new file mode 100644
index 0000000..e382b95
--- /dev/null
+++ b/src/Rules/Iso3166.php
@@ -0,0 +1,92 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Intervention\Validation\Rules;
+
+use Intervention\Validation\AbstractRule;
+use InvalidArgumentException;
+
+class Iso3166 extends AbstractRule
+{
+    public const ALPHA2 = 'alpha2';
+    public const ALPHA3 = 'alpha3';
+    public const NUMERIC = 'numeric';
+
+    private const VALUES = [
+        self::ALPHA2 => [
+            'AD', 'AE', 'AF', 'AG', 'AI', 'AL', 'AM', 'AO', 'AQ', 'AR', 'AS', 'AT', 'AU', 'AW', 'AX', 'AZ', 'BA', 'BB',
+            'BD', 'BE', 'BF', 'BG', 'BH', 'BI', 'BJ', 'BL', 'BM', 'BN', 'BO', 'BQ', 'BR', 'BS', 'BT', 'BV', 'BW', 'BY',
+            'BZ', 'CA', 'CC', 'CD', 'CF', 'CG', 'CH', 'CI', 'CK', 'CL', 'CM', 'CN', 'CO', 'CR', 'CU', 'CV', 'CW', 'CX',
+            'CY', 'CZ', 'DE', 'DJ', 'DK', 'DM', 'DO', 'DZ', 'EC', 'EE', 'EG', 'EH', 'ER', 'ES', 'ET', 'FI', 'FJ', 'FK',
+            'FM', 'FO', 'FR', 'GA', 'GB', 'GD', 'GE', 'GF', 'GG', 'GH', 'GI', 'GL', 'GM', 'GN', 'GP', 'GQ', 'GR', 'GS',
+            'GT', 'GU', 'GW', 'GY', 'HK', 'HM', 'HN', 'HR', 'HT', 'HU', 'ID', 'IE', 'IL', 'IM', 'IN', 'IO', 'IQ', 'IR',
+            'IS', 'IT', 'JE', 'JM', 'JO', 'JP', 'KE', 'KG', 'KH', 'KI', 'KM', 'KN', 'KP', 'KR', 'KW', 'KY', 'KZ', 'LA',
+            'LB', 'LC', 'LI', 'LK', 'LR', 'LS', 'LT', 'LU', 'LV', 'LY', 'MA', 'MC', 'MD', 'ME', 'MF', 'MG', 'MH', 'MK',
+            'ML', 'MM', 'MN', 'MO', 'MP', 'MQ', 'MR', 'MS', 'MT', 'MU', 'MV', 'MW', 'MX', 'MY', 'MZ', 'NA', 'NC', 'NE',
+            'NF', 'NG', 'NI', 'NL', 'NO', 'NP', 'NR', 'NU', 'NZ', 'OM', 'PA', 'PE', 'PF', 'PG', 'PH', 'PK', 'PL', 'PM',
+            'PN', 'PR', 'PS', 'PT', 'PW', 'PY', 'QA', 'RE', 'RO', 'RS', 'RU', 'RW', 'SA', 'SB', 'SC', 'SD', 'SE', 'SG',
+            'SH', 'SI', 'SJ', 'SK', 'SL', 'SM', 'SN', 'SO', 'SR', 'SS', 'ST', 'SV', 'SX', 'SY', 'SZ', 'TC', 'TD', 'TF',
+            'TG', 'TH', 'TJ', 'TK', 'TL', 'TM', 'TN', 'TO', 'TR', 'TT', 'TV', 'TW', 'TZ', 'UA', 'UG', 'UM', 'US', 'UY',
+            'UZ', 'VA', 'VC', 'VE', 'VG', 'VI', 'VN', 'VU', 'WF', 'WS', 'YE', 'YT', 'ZA', 'ZM', 'ZW',
+        ],
+        self::ALPHA3 => [
+            'AFG', 'ALB', 'DZA', 'ASM', 'AND', 'AGO', 'AIA', 'ATA', 'ATG', 'ARG', 'ARM', 'ABW', 'AUS', 'AUT', 'AZE',
+            'BHS', 'BHR', 'BGD', 'BRB', 'BLR', 'BEL', 'BLZ', 'BEN', 'BMU', 'BTN', 'BOL', 'BES', 'BIH', 'BWA', 'BVT',
+            'BRA', 'IOT', 'BRN', 'BGR', 'BFA', 'BDI', 'CPV', 'KHM', 'CMR', 'CAN', 'CYM', 'CAF', 'TCD', 'CHL', 'CHN',
+            'CXR', 'CCK', 'COL', 'COM', 'COD', 'COG', 'COK', 'CRI', 'HRV', 'CUB', 'CUW', 'CYP', 'CZE', 'CIV', 'DNK',
+            'DJI', 'DMA', 'DOM', 'ECU', 'EGY', 'SLV', 'GNQ', 'ERI', 'EST', 'SWZ', 'ETH', 'FLK', 'FRO', 'FJI', 'FIN',
+            'FRA', 'GUF', 'PYF', 'ATF', 'GAB', 'GMB', 'GEO', 'DEU', 'GHA', 'GIB', 'GRC', 'GRL', 'GRD', 'GLP', 'GUM',
+            'GTM', 'GGY', 'GIN', 'GNB', 'GUY', 'HTI', 'HMD', 'VAT', 'HND', 'HKG', 'HUN', 'ISL', 'IND', 'IDN', 'IRN',
+            'IRQ', 'IRL', 'IMN', 'ISR', 'ITA', 'JAM', 'JPN', 'JEY', 'JOR', 'KAZ', 'KEN', 'KIR', 'PRK', 'KOR', 'KWT',
+            'KGZ', 'LAO', 'LVA', 'LBN', 'LSO', 'LBR', 'LBY', 'LIE', 'LTU', 'LUX', 'MAC', 'MDG', 'MWI', 'MYS', 'MDV',
+            'MLI', 'MLT', 'MHL', 'MTQ', 'MRT', 'MUS', 'MYT', 'MEX', 'FSM', 'MDA', 'MCO', 'MNG', 'MNE', 'MSR', 'MAR',
+            'MOZ', 'MMR', 'NAM', 'NRU', 'NPL', 'NLD', 'NCL', 'NZL', 'NIC', 'NER', 'NGA', 'NIU', 'NFK', 'MKD', 'MNP',
+            'NOR', 'OMN', 'PAK', 'PLW', 'PSE', 'PAN', 'PNG', 'PRY', 'PER', 'PHL', 'PCN', 'POL', 'PRT', 'PRI', 'QAT',
+            'ROU', 'RUS', 'RWA', 'REU', 'BLM', 'SHN', 'KNA', 'LCA', 'MAF', 'SPM', 'VCT', 'WSM', 'SMR', 'STP', 'SAU',
+            'SEN', 'SRB', 'SYC', 'SLE', 'SGP', 'SXM', 'SVK', 'SVN', 'SLB', 'SOM', 'ZAF', 'SGS', 'SSD', 'ESP', 'LKA',
+            'SDN', 'SUR', 'SJM', 'SWE', 'CHE', 'SYR', 'TWN', 'TJK', 'TZA', 'THA', 'TLS', 'TGO', 'TKL', 'TON', 'TTO',
+            'TUN', 'TKM', 'TCA', 'TUV', 'TUR', 'UGA', 'UKR', 'ARE', 'GBR', 'UMI', 'USA', 'URY', 'UZB', 'VUT', 'VEN',
+            'VNM', 'VGB', 'VIR', 'WLF', 'ESH', 'YEM', 'ZMB', 'ZWE', 'ALA',
+        ],
+        self::NUMERIC => [
+            '004', '008', '010', '012', '016', '020', '024', '028', '031', '032', '036', '040', '044', '048', '050',
+            '051', '052', '056', '060', '072', '074', '076', '084', '086', '090', '092', '096', '100', '104', '108',
+            '112', '116', '120', '124', '132', '136', '140', '144', '148', '152', '156', '158', '162', '166', '170',
+            '174', '175', '178', '180', '184', '188', '191', '192', '196', '203', '204', '208', '212', '214', '218',
+            '222', '226', '231', '232', '233', '234', '238', '239', '242', '246', '248', '250', '254', '258', '260',
+            '262', '266', '268', '270', '275', '276', '288', '292', '296', '300', '304', '308', '312', '316', '320',
+            '324', '328', '332', '334', '336', '340', '344', '348', '352', '356', '360', '364', '368', '372', '376',
+            '380', '384', '388', '392', '398', '400', '404', '408', '410', '414', '417', '418', '422', '426', '428',
+            '430', '434', '438', '440', '442', '446', '450', '454', '458', '462', '466', '470', '474', '478', '480',
+            '484', '492', '496', '498', '499', '500', '504', '508', '512', '516', '520', '524', '528', '531', '533',
+            '534', '535', '540', '548', '554', '558', '562', '566', '570', '574', '578', '580', '581', '583', '584',
+            '585', '586', '591', '598', '600', '604', '608', '612', '616', '620', '624', '626', '630', '634', '638',
+            '642', '643', '646', '652', '654', '659', '660', '662', '663', '666', '670', '674', '678', '682', '686',
+            '688', '690', '694', '702', '703', '704', '705', '706', '710', '716', '724', '728', '729', '732', '740',
+            '744', '748', '752', '756', '760', '762', '764', '768', '772', '776', '780', '784', '788', '792', '795',
+            '796', '798', '800', '804', '807', '818', '826', '831', '832', '833', '834', '840', '850', '854', '858',
+            '860', '862', '876', '882', '887', '894', '064', '068', '070',
+        ],
+    ];
+
+    /**
+     * @throws InvalidArgumentException
+     */
+    public function __construct(protected string $format = self::ALPHA2)
+    {
+        if (!in_array($this->format, [self::ALPHA2, self::ALPHA3, self::NUMERIC])) {
+            throw new InvalidArgumentException('Invalid format.');
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @see Rule::isValid()
+     */
+    public function isValid(mixed $value): bool
+    {
+        return in_array(strval($value), self::VALUES[$this->format], strict: true);
+    }
+}
diff --git a/tests/Rules/Iso3166Test.php b/tests/Rules/Iso3166Test.php
new file mode 100644
index 0000000..29d47ef
--- /dev/null
+++ b/tests/Rules/Iso3166Test.php
@@ -0,0 +1,88 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Intervention\Validation\Tests\Rules;
+
+use Generator;
+use Intervention\Validation\Rules\Iso3166;
+use PHPUnit\Framework\Attributes\DataProvider;
+use PHPUnit\Framework\TestCase;
+
+final class Iso3166Test extends TestCase
+{
+    #[DataProvider('dataProvider')]
+    public function testValidationAlpha2(bool $result, string $value, string $format): void
+    {
+        $valid = (new Iso3166($format))->isValid($value);
+        $this->assertEquals($result, $valid);
+    }
+
+    public static function dataProvider(): Generator
+    {
+        yield [true, 'BS', Iso3166::ALPHA2];
+        yield [true, 'BW', Iso3166::ALPHA2];
+        yield [true, 'DE', Iso3166::ALPHA2];
+        yield [true, 'GR', Iso3166::ALPHA2];
+        yield [true, 'IT', Iso3166::ALPHA2];
+        yield [true, 'JP', Iso3166::ALPHA2];
+        yield [true, 'LU', Iso3166::ALPHA2];
+        yield [true, 'PL', Iso3166::ALPHA2];
+        yield [true, 'PL', Iso3166::ALPHA2];
+
+        yield [true, 'DEU', Iso3166::ALPHA3];
+        yield [true, 'CAN', Iso3166::ALPHA3];
+        yield [true, 'AUS', Iso3166::ALPHA3];
+        yield [true, 'PAK', Iso3166::ALPHA3];
+        yield [true, 'ERI', Iso3166::ALPHA3];
+        yield [true, 'ATA', Iso3166::ALPHA3];
+        yield [true, 'AUT', Iso3166::ALPHA3];
+        yield [true, 'KOR', Iso3166::ALPHA3];
+        yield [true, 'CHL', Iso3166::ALPHA3];
+
+        yield [true, '180', Iso3166::NUMERIC];
+        yield [true, '004', Iso3166::NUMERIC];
+        yield [true, '440', Iso3166::NUMERIC];
+        yield [true, '706', Iso3166::NUMERIC];
+        yield [true, '120', Iso3166::NUMERIC];
+        yield [true, '312', Iso3166::NUMERIC];
+        yield [true, '850', Iso3166::NUMERIC];
+        yield [true, '732', Iso3166::NUMERIC];
+        yield [true, '203', Iso3166::NUMERIC];
+
+        yield [false, 'XE', Iso3166::ALPHA2];
+        yield [false, 'BAC', Iso3166::ALPHA2];
+        yield [false, 'DZA', Iso3166::ALPHA2];
+        yield [false, 'RG', Iso3166::ALPHA2];
+        yield [false, 'QX', Iso3166::ALPHA2];
+        yield [false, 'XX', Iso3166::ALPHA2];
+        yield [false, 'LP', Iso3166::ALPHA2];
+        yield [false, 'PU', Iso3166::ALPHA2];
+        yield [false, 'PZ', Iso3166::ALPHA2];
+        yield [false, 'de', Iso3166::ALPHA2];
+        yield [false, '', Iso3166::ALPHA2];
+
+        yield [false, 'DEX', Iso3166::ALPHA3];
+        yield [false, 'CAX', Iso3166::ALPHA3];
+        yield [false, 'USI', Iso3166::ALPHA3];
+        yield [false, 'PAC', Iso3166::ALPHA3];
+        yield [false, 'E3I', Iso3166::ALPHA3];
+        yield [false, 'ATW', Iso3166::ALPHA3];
+        yield [false, 'PAA', Iso3166::ALPHA3];
+        yield [false, 'WWW', Iso3166::ALPHA3];
+        yield [false, 'DE', Iso3166::ALPHA3];
+        yield [false, '', Iso3166::ALPHA3];
+
+        yield [false, '001', Iso3166::NUMERIC];
+        yield [false, '002', Iso3166::NUMERIC];
+        yield [false, '20', Iso3166::NUMERIC];
+        yield [false, '2', Iso3166::NUMERIC];
+        yield [false, '0', Iso3166::NUMERIC];
+        yield [false, '12001', Iso3166::NUMERIC];
+        yield [false, '994', Iso3166::NUMERIC];
+        yield [false, '730', Iso3166::NUMERIC];
+        yield [false, '870', Iso3166::NUMERIC];
+        yield [false, '18O', Iso3166::NUMERIC];
+        yield [false, '', Iso3166::NUMERIC];
+    }
+}