diff --git a/changelog.txt b/changelog.txt
index 4a8d5a763f..cc9ea9c983 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -29,6 +29,7 @@
 * Update - Allow more situations to enable settings synchronization with Stripe
 * Update - Ensure that we check for settings sync eligibility after every upgrade
 * Dev - Update @wordpress/scripts to 30.24.0 and @wordpress/base-styles to 6.7.0
+* Fix - Update Ukraine state mapping list
 
 = 9.9.2 - 2025-09-29 =
 * Fix - BACS instruction text appears twice on the Order Confirmation page
diff --git a/includes/constants/class-wc-stripe-payment-request-button-states.php b/includes/constants/class-wc-stripe-payment-request-button-states.php
index 7ef766d4d9..7ed7504d11 100644
--- a/includes/constants/class-wc-stripe-payment-request-button-states.php
+++ b/includes/constants/class-wc-stripe-payment-request-button-states.php
@@ -1080,6 +1080,36 @@ class WC_Stripe_Payment_Request_Button_States {
 		],
 		// Tanzania.
 		'TZ' => [],
+		// Ukraine.
+		'UA' => [
+			'UA-05' => [ 'Vinnytsia Oblast', 'Vinnytsia Oblast', 'Вінницька область' ],
+			'UA-07' => [ 'Volyn Oblast', 'Volyn Oblast', 'Волинська область' ],
+			'UA-09' => [ 'Luhansk Oblast', 'Luhansk Oblast', 'Луганська область' ],
+			'UA-12' => [ 'Dnipropetrovsk Oblast', 'Dnipropetrovsk Oblast', 'Дніпропетровська область' ],
+			'UA-14' => [ 'Donetsk Oblast', 'Donetsk Oblast', 'Донецька область' ],
+			'UA-18' => [ 'Zhytomyr Oblast', 'Zhytomyr Oblast', 'Житомирська область' ],
+			'UA-21' => [ 'Zakarpattia Oblast', 'Zakarpattia Oblast', 'Закарпатська область' ],
+			'UA-23' => [ 'Zaporizhzhia Oblast', 'Zaporizhzhia Oblast', 'Запорізька область' ],
+			'UA-26' => [ 'Ivano-Frankivsk Oblast', 'Ivano-Frankivsk Oblast', 'Івано-Франківська область' ],
+			'UA-30' => [ 'Kyiv', 'Kyiv', 'Київ' ],
+			'UA-32' => [ 'Kyiv Oblast', 'Kyiv Oblast', 'Київська область' ],
+			'UA-35' => [ 'Kirovohrad Oblast', 'Kirovohrad Oblast', 'Кіровоградська область' ],
+			'UA-40' => [ 'Sevastopol', 'Sevastopol', 'Севастополь' ],
+			'UA-43' => [ 'Crimea', 'Crimea', 'Автономна Республіка Крим' ],
+			'UA-46' => [ 'Lviv Oblast', 'Lviv Oblast', 'Львівська область' ],
+			'UA-48' => [ 'Mykolaiv Oblast', 'Mykolaiv Oblast', 'Миколаївська область' ],
+			'UA-51' => [ 'Odesa Oblast', 'Odesa Oblast', 'Одеська область' ],
+			'UA-53' => [ 'Poltava Oblast', 'Poltava Oblast', 'Полтавська область' ],
+			'UA-56' => [ 'Rivne Oblast', 'Rivne Oblast', 'Рівненська область' ],
+			'UA-59' => [ 'Sumy Oblast', 'Sumy Oblast', 'Сумська область' ],
+			'UA-61' => [ 'Ternopil Oblast', 'Ternopil Oblast', 'Тернопільська область' ],
+			'UA-63' => [ 'Kharkiv Oblast', 'Kharkiv Oblast', 'Харківська область' ],
+			'UA-65' => [ 'Kherson Oblast', 'Kherson Oblast', 'Херсонська область' ],
+			'UA-68' => [ 'Khmelnytskyi Oblast', 'Khmelnytskyi Oblast', 'Хмельницька область' ],
+			'UA-71' => [ 'Cherkasy Oblast', 'Cherkasy Oblast', 'Черкаська область' ],
+			'UA-74' => [ 'Chernihiv Oblast', 'Chernihiv Oblast', 'Чернігівська область' ],
+			'UA-77' => [ 'Chernivtsi Oblast', 'Chernivtsi Oblast', 'Чернівецька область' ],
+		],
 		// Uganda.
 		'UG' => [],
 		// United States Minor Outlying Islands.
diff --git a/readme.txt b/readme.txt
index a97ef2362c..ccf5522492 100644
--- a/readme.txt
+++ b/readme.txt
@@ -140,5 +140,6 @@ If you get stuck, you can ask for help in the [Plugin Forum](https://wordpress.o
 * Update - Ensure that we check for settings sync eligibility after every upgrade
 * Update - Reduce settings Javascript file size by using smaller image
 * Dev - Update @wordpress/scripts to 30.24.0 and @wordpress/base-styles to 6.7.0
+* Fix - Update Ukraine state mapping list
 
 [See changelog for full details across versions](https://raw.githubusercontent.com/woocommerce/woocommerce-gateway-stripe/trunk/changelog.txt).