diff --git a/plugins/woocommerce/changelog/fix-26692-order-invoice-nomenclature b/plugins/woocommerce/changelog/fix-26692-order-invoice-nomenclature
new file mode 100644
index 00000000000..9659c36ac2d
--- /dev/null
+++ b/plugins/woocommerce/changelog/fix-26692-order-invoice-nomenclature
@@ -0,0 +1,4 @@
+Significance: patch
+Type: tweak
+
+Prefer the use of 'order details' (instead of 'invoice') in our order emails.
diff --git a/plugins/woocommerce/includes/admin/meta-boxes/class-wc-meta-box-order-actions.php b/plugins/woocommerce/includes/admin/meta-boxes/class-wc-meta-box-order-actions.php
index 622dcc29a84..8dcb5247805 100644
--- a/plugins/woocommerce/includes/admin/meta-boxes/class-wc-meta-box-order-actions.php
+++ b/plugins/woocommerce/includes/admin/meta-boxes/class-wc-meta-box-order-actions.php
@@ -199,7 +199,7 @@ class WC_Meta_Box_Order_Actions {
 	 */
 	private static function get_available_order_actions_for_order( $order ) {
 		$actions = array(
-			'send_order_details'              => __( 'Email invoice / order details to customer', 'woocommerce' ),
+			'send_order_details'              => __( 'Send order details to customer', 'woocommerce' ),
 			'send_order_details_admin'        => __( 'Resend new order notification', 'woocommerce' ),
 			'regenerate_download_permissions' => __( 'Regenerate download permissions', 'woocommerce' ),
 		);
diff --git a/plugins/woocommerce/includes/emails/class-wc-email-customer-invoice.php b/plugins/woocommerce/includes/emails/class-wc-email-customer-invoice.php
index 0a2592cacf5..bd6c7b9f05d 100644
--- a/plugins/woocommerce/includes/emails/class-wc-email-customer-invoice.php
+++ b/plugins/woocommerce/includes/emails/class-wc-email-customer-invoice.php
@@ -12,9 +12,11 @@ if ( ! defined( 'ABSPATH' ) ) {
 if ( ! class_exists( 'WC_Email_Customer_Invoice', false ) ) :
 
 	/**
-	 * Customer Invoice.
+	 * Order details email.
 	 *
-	 * An email sent to the customer via admin.
+	 * An email sent to the customer via admin, that summarizes the details of their order. This was
+	 * historically referred to as the 'invoice', and for backwards compatibility reasons that is still
+	 * reflected in the class name (although on a user-level we have moved away from that nomenclature).
 	 *
 	 * @class       WC_Email_Customer_Invoice
 	 * @version     3.5.0
@@ -29,8 +31,8 @@ if ( ! class_exists( 'WC_Email_Customer_Invoice', false ) ) :
 		public function __construct() {
 			$this->id             = 'customer_invoice';
 			$this->customer_email = true;
-			$this->title          = __( 'Customer invoice / Order details', 'woocommerce' );
-			$this->description    = __( 'Customer invoice emails can be sent to customers containing their order information and payment links.', 'woocommerce' );
+			$this->title          = __( 'Order details', 'woocommerce' );
+			$this->description    = __( 'Order detail emails can be sent to customers containing their order information and payment links.', 'woocommerce' );
 			$this->template_html  = 'emails/customer-invoice.php';
 			$this->template_plain = 'emails/plain/customer-invoice.php';
 			$this->placeholders   = array(
@@ -52,11 +54,7 @@ if ( ! class_exists( 'WC_Email_Customer_Invoice', false ) ) :
 		 * @return string
 		 */
 		public function get_default_subject( $paid = false ) {
-			if ( $paid ) {
-				return __( 'Invoice for order #{order_number} on {site_title}', 'woocommerce' );
-			} else {
-				return __( 'Your latest {site_title} invoice', 'woocommerce' );
-			}
+			return __( 'Details for order #{order_number} on {site_title}', 'woocommerce' );
 		}
 
 		/**
@@ -67,11 +65,7 @@ if ( ! class_exists( 'WC_Email_Customer_Invoice', false ) ) :
 		 * @return string
 		 */
 		public function get_default_heading( $paid = false ) {
-			if ( $paid ) {
-				return __( 'Invoice for order #{order_number}', 'woocommerce' );
-			} else {
-				return __( 'Your invoice for order #{order_number}', 'woocommerce' );
-			}
+			return __( 'Details for order #{order_number}', 'woocommerce' );
 		}
 
 		/**
diff --git a/plugins/woocommerce/tests/api-core-tests/tests/settings/settings-crud.test.js b/plugins/woocommerce/tests/api-core-tests/tests/settings/settings-crud.test.js
index f24cb5f3e16..c137434fa57 100644
--- a/plugins/woocommerce/tests/api-core-tests/tests/settings/settings-crud.test.js
+++ b/plugins/woocommerce/tests/api-core-tests/tests/settings/settings-crud.test.js
@@ -225,9 +225,9 @@ test.describe.serial( 'Settings API tests: CRUD', () => {
 				expect.arrayContaining( [
 					expect.objectContaining( {
 						id: 'email_customer_invoice',
-						label: 'Customer invoice / Order details',
+						label: 'Order details',
 						description:
-							'Customer invoice emails can be sent to customers containing their order information and payment links.',
+							'Order detail emails can be sent to customers containing their order information and payment links.',
 						parent_id: 'email',
 						sub_groups: expect.arrayContaining( [] ),
 					} ),
diff --git a/plugins/woocommerce/tests/e2e-pw/tests/merchant/order-emails.spec.js b/plugins/woocommerce/tests/e2e-pw/tests/merchant/order-emails.spec.js
index 87b9840ce28..c7863f40d3c 100644
--- a/plugins/woocommerce/tests/e2e-pw/tests/merchant/order-emails.spec.js
+++ b/plugins/woocommerce/tests/e2e-pw/tests/merchant/order-emails.spec.js
@@ -237,7 +237,7 @@ test.describe( 'Merchant > Order Action emails received', () => {
 				.getByRole( 'row' )
 				.filter( { hasText: customerBilling.email } )
 				.filter( {
-					hasText: `Invoice for order #${ orderId } on ${ storeName }`,
+					hasText: `Details for order #${ orderId } on ${ storeName }`,
 				} )
 		).toBeVisible();
 	} );