In WooCommerce, an optional “Order Notes” field is generally shown at the bottom of the checkout page.

You can easily remove this field using a plugin or with custom code.

Remove with a Plugin

The free plugin Checkout Field Editor (Checkout Manager) for WooCommerce allows you to edit, remove or add fields in the checkout form.

1. Install the plugin
2. Go to the settings page for the plugin
3. Go to the “Additional Fields” section
4. Select the “order_comments” field and click “Remove”
5. Click “Save Changes”

Remove with Code

Here’s the code snippet to remove the order notes field from checkout:

/**
 * Remove the order field from checkout.
 */
function devpress_remove_checkout_phone_field( $fields ) {
	unset( $fields['order']['order_comments'] );
	return $fields;
}
add_filter( 'woocommerce_checkout_fields', 'devpress_remove_checkout_phone_field' );

There’s also an alternate method, which is just a one line filter:

add_filter( 'woocommerce_enable_order_notes_field', '__return_false', 9999 );