diff --git a/rules/prefer-dom-node-dataset.js b/rules/prefer-dom-node-dataset.js
index a5a8228f9b..3040a32f0a 100644
--- a/rules/prefer-dom-node-dataset.js
+++ b/rules/prefer-dom-node-dataset.js
@@ -1,5 +1,5 @@
 'use strict';
-const isValidVariableName = require('./utils/is-valid-variable-name.js');
+const {isIdentifierName} = require('@babel/helper-validator-identifier');
 const quoteString = require('./utils/quote-string.js');
 const {methodCallSelector, matches} = require('./selectors/index.js');
 
@@ -44,7 +44,7 @@ const create = context => ({
 			case 'setAttribute':
 			case 'getAttribute':
 			case 'removeAttribute': {
-				text = isValidVariableName(name) ? `.${name}` : `[${quoteString(name, nameNode.raw.charAt(0))}]`;
+				text = isIdentifierName(name) ? `.${name}` : `[${quoteString(name, nameNode.raw.charAt(0))}]`;
 				text = `${datasetText}${text}`;
 				if (method === 'setAttribute') {
 					text += ` = ${sourceCode.getText(node.arguments[1])}`;
diff --git a/rules/utils/is-valid-variable-name.js b/rules/utils/is-valid-variable-name.js
deleted file mode 100644
index 772fd9b52c..0000000000
--- a/rules/utils/is-valid-variable-name.js
+++ /dev/null
@@ -1,3 +0,0 @@
-'use strict';
-
-module.exports = name => /^[$_a-z][\w$]*$/i.test(name);
diff --git a/test/prefer-dom-node-dataset.mjs b/test/prefer-dom-node-dataset.mjs
index 5cf390dc45..53f3d62ccb 100644
--- a/test/prefer-dom-node-dataset.mjs
+++ b/test/prefer-dom-node-dataset.mjs
@@ -39,6 +39,7 @@ test.snapshot({
 		`,
 		'element.setAttribute(\'data-unicorn\', \'🦄\');',
 		'element.setAttribute(\'data-🦄\', \'🦄\');',
+		'element.setAttribute(\'data-ゆ\', \'ゆ\');',
 		'element.setAttribute(\'data-foo2\', \'🦄\');',
 		'element.setAttribute(\'data-foo:bar\', \'zaz\');',
 		'element.setAttribute("data-foo:bar", "zaz");',
@@ -91,6 +92,7 @@ test.snapshot({
 		'element.removeAttribute("data-unicorn");',
 		'element.removeAttribute("data-unicorn",);',
 		'element.removeAttribute("data-🦄");',
+		'element.removeAttribute("data-ゆ");',
 		'element.removeAttribute("data-foo2");',
 		'element.removeAttribute("data-foo:bar");',
 		'element.removeAttribute("data-foo:bar");',
@@ -142,6 +144,7 @@ test.snapshot({
 		'element.hasAttribute("data-unicorn");',
 		'element.hasAttribute("data-unicorn",);',
 		'element.hasAttribute("data-🦄");',
+		'element.hasAttribute("data-ゆ");',
 		'element.hasAttribute("data-foo2");',
 		'element.hasAttribute("data-foo:bar");',
 		'element.hasAttribute("data-foo:bar");',
@@ -188,6 +191,7 @@ test.snapshot({
 		'element.getAttribute("data-unicorn");',
 		'element.getAttribute("data-unicorn",);',
 		'element.getAttribute("data-🦄");',
+		'element.getAttribute("data-ゆ");',
 		'element.getAttribute("data-foo2");',
 		'element.getAttribute("data-foo:bar");',
 		'element.getAttribute("data-foo:bar");',
diff --git a/test/snapshots/prefer-dom-node-dataset.mjs.md b/test/snapshots/prefer-dom-node-dataset.mjs.md
index f60e04ebf7..2df5d46b0e 100644
--- a/test/snapshots/prefer-dom-node-dataset.mjs.md
+++ b/test/snapshots/prefer-dom-node-dataset.mjs.md
@@ -62,6 +62,22 @@ Generated by [AVA](https://avajs.dev).
     `
 
 ## Invalid #4
+      1 | element.setAttribute('data-ゆ', 'ゆ');
+
+> Output
+
+    `␊
+      1 | element.dataset.ゆ = 'ゆ';␊
+    `
+
+> Error 1/1
+
+    `␊
+    > 1 | element.setAttribute('data-ゆ', 'ゆ');␊
+        | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`setAttribute(…)\`.␊
+    `
+
+## Invalid #5
       1 | element.setAttribute('data-foo2', '🦄');
 
 > Output
@@ -77,7 +93,7 @@ Generated by [AVA](https://avajs.dev).
         | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`setAttribute(…)\`.␊
     `
 
-## Invalid #5
+## Invalid #6
       1 | element.setAttribute('data-foo:bar', 'zaz');
 
 > Output
@@ -93,7 +109,7 @@ Generated by [AVA](https://avajs.dev).
         | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`setAttribute(…)\`.␊
     `
 
-## Invalid #6
+## Invalid #7
       1 | element.setAttribute("data-foo:bar", "zaz");
 
 > Output
@@ -109,7 +125,7 @@ Generated by [AVA](https://avajs.dev).
         | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`setAttribute(…)\`.␊
     `
 
-## Invalid #7
+## Invalid #8
       1 | element.setAttribute('data-foo.bar', 'zaz');
 
 > Output
@@ -125,7 +141,7 @@ Generated by [AVA](https://avajs.dev).
         | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`setAttribute(…)\`.␊
     `
 
-## Invalid #8
+## Invalid #9
       1 | element.setAttribute('data-foo-bar', 'zaz');
 
 > Output
@@ -141,7 +157,7 @@ Generated by [AVA](https://avajs.dev).
         | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`setAttribute(…)\`.␊
     `
 
-## Invalid #9
+## Invalid #10
       1 | element.setAttribute('data-foo', /* comment */ 'bar');
 
 > Output
@@ -157,7 +173,7 @@ Generated by [AVA](https://avajs.dev).
         | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`setAttribute(…)\`.␊
     `
 
-## Invalid #10
+## Invalid #11
       1 | element.querySelector('#selector').setAttribute('data-AllowAccess', true);
 
 > Output
@@ -173,7 +189,7 @@ Generated by [AVA](https://avajs.dev).
         | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`setAttribute(…)\`.␊
     `
 
-## Invalid #11
+## Invalid #12
       1 | element.setAttribute("data-", "🦄");
 
 > Output
@@ -189,7 +205,7 @@ Generated by [AVA](https://avajs.dev).
         | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`setAttribute(…)\`.␊
     `
 
-## Invalid #12
+## Invalid #13
       1 | element.setAttribute("data--foo", "🦄");
 
 > Output
@@ -205,7 +221,7 @@ Generated by [AVA](https://avajs.dev).
         | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`setAttribute(…)\`.␊
     `
 
-## Invalid #13
+## Invalid #14
       1 | element.setAttribute("DATA--FOO", "🦄");
 
 > Output
@@ -221,7 +237,7 @@ Generated by [AVA](https://avajs.dev).
         | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`setAttribute(…)\`.␊
     `
 
-## Invalid #14
+## Invalid #15
       1 | element.setAttribute("DATA- ", "🦄");
 
 > Output
@@ -237,7 +253,7 @@ Generated by [AVA](https://avajs.dev).
         | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`setAttribute(…)\`.␊
     `
 
-## Invalid #15
+## Invalid #16
       1 | element.setAttribute("DATA-Foo-bar", "🦄");
 
 > Output
@@ -340,6 +356,22 @@ Generated by [AVA](https://avajs.dev).
     `
 
 ## Invalid #6
+      1 | element.removeAttribute("data-ゆ");
+
+> Output
+
+    `␊
+      1 | delete element.dataset.ゆ;␊
+    `
+
+> Error 1/1
+
+    `␊
+    > 1 | element.removeAttribute("data-ゆ");␊
+        | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`removeAttribute(…)\`.␊
+    `
+
+## Invalid #7
       1 | element.removeAttribute("data-foo2");
 
 > Output
@@ -355,7 +387,7 @@ Generated by [AVA](https://avajs.dev).
         | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`removeAttribute(…)\`.␊
     `
 
-## Invalid #7
+## Invalid #8
       1 | element.removeAttribute("data-foo:bar");
 
 > Output
@@ -371,7 +403,7 @@ Generated by [AVA](https://avajs.dev).
         | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`removeAttribute(…)\`.␊
     `
 
-## Invalid #8
+## Invalid #9
       1 | element.removeAttribute("data-foo:bar");
 
 > Output
@@ -387,7 +419,7 @@ Generated by [AVA](https://avajs.dev).
         | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`removeAttribute(…)\`.␊
     `
 
-## Invalid #9
+## Invalid #10
       1 | element.removeAttribute("data-foo.bar");
 
 > Output
@@ -403,7 +435,7 @@ Generated by [AVA](https://avajs.dev).
         | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`removeAttribute(…)\`.␊
     `
 
-## Invalid #10
+## Invalid #11
       1 | element.removeAttribute("data-foo-bar");
 
 > Output
@@ -419,7 +451,7 @@ Generated by [AVA](https://avajs.dev).
         | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`removeAttribute(…)\`.␊
     `
 
-## Invalid #11
+## Invalid #12
       1 | element.removeAttribute("data-foo");
 
 > Output
@@ -435,7 +467,7 @@ Generated by [AVA](https://avajs.dev).
         | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`removeAttribute(…)\`.␊
     `
 
-## Invalid #12
+## Invalid #13
       1 | element.querySelector("#selector").removeAttribute("data-AllowAccess");
 
 > Output
@@ -451,7 +483,7 @@ Generated by [AVA](https://avajs.dev).
         | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`removeAttribute(…)\`.␊
     `
 
-## Invalid #13
+## Invalid #14
       1 | element.removeAttribute("data-");
 
 > Output
@@ -554,6 +586,22 @@ Generated by [AVA](https://avajs.dev).
     `
 
 ## Invalid #6
+      1 | element.hasAttribute("data-ゆ");
+
+> Output
+
+    `␊
+      1 | Object.hasOwn(element.dataset, "ゆ");␊
+    `
+
+> Error 1/1
+
+    `␊
+    > 1 | element.hasAttribute("data-ゆ");␊
+        | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`hasAttribute(…)\`.␊
+    `
+
+## Invalid #7
       1 | element.hasAttribute("data-foo2");
 
 > Output
@@ -569,7 +617,7 @@ Generated by [AVA](https://avajs.dev).
         | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`hasAttribute(…)\`.␊
     `
 
-## Invalid #7
+## Invalid #8
       1 | element.hasAttribute("data-foo:bar");
 
 > Output
@@ -585,7 +633,7 @@ Generated by [AVA](https://avajs.dev).
         | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`hasAttribute(…)\`.␊
     `
 
-## Invalid #8
+## Invalid #9
       1 | element.hasAttribute("data-foo:bar");
 
 > Output
@@ -601,7 +649,7 @@ Generated by [AVA](https://avajs.dev).
         | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`hasAttribute(…)\`.␊
     `
 
-## Invalid #9
+## Invalid #10
       1 | element.hasAttribute("data-foo.bar");
 
 > Output
@@ -617,7 +665,7 @@ Generated by [AVA](https://avajs.dev).
         | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`hasAttribute(…)\`.␊
     `
 
-## Invalid #10
+## Invalid #11
       1 | element.hasAttribute("data-foo-bar");
 
 > Output
@@ -633,7 +681,7 @@ Generated by [AVA](https://avajs.dev).
         | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`hasAttribute(…)\`.␊
     `
 
-## Invalid #11
+## Invalid #12
       1 | element.hasAttribute("data-foo");
 
 > Output
@@ -649,7 +697,7 @@ Generated by [AVA](https://avajs.dev).
         | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`hasAttribute(…)\`.␊
     `
 
-## Invalid #12
+## Invalid #13
       1 | element.querySelector("#selector").hasAttribute("data-AllowAccess");
 
 > Output
@@ -752,6 +800,22 @@ Generated by [AVA](https://avajs.dev).
     `
 
 ## Invalid #6
+      1 | element.getAttribute("data-ゆ");
+
+> Output
+
+    `␊
+      1 | element.dataset.ゆ;␊
+    `
+
+> Error 1/1
+
+    `␊
+    > 1 | element.getAttribute("data-ゆ");␊
+        | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`getAttribute(…)\`.␊
+    `
+
+## Invalid #7
       1 | element.getAttribute("data-foo2");
 
 > Output
@@ -767,7 +831,7 @@ Generated by [AVA](https://avajs.dev).
         | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`getAttribute(…)\`.␊
     `
 
-## Invalid #7
+## Invalid #8
       1 | element.getAttribute("data-foo:bar");
 
 > Output
@@ -783,7 +847,7 @@ Generated by [AVA](https://avajs.dev).
         | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`getAttribute(…)\`.␊
     `
 
-## Invalid #8
+## Invalid #9
       1 | element.getAttribute("data-foo:bar");
 
 > Output
@@ -799,7 +863,7 @@ Generated by [AVA](https://avajs.dev).
         | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`getAttribute(…)\`.␊
     `
 
-## Invalid #9
+## Invalid #10
       1 | element.getAttribute("data-foo.bar");
 
 > Output
@@ -815,7 +879,7 @@ Generated by [AVA](https://avajs.dev).
         | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`getAttribute(…)\`.␊
     `
 
-## Invalid #10
+## Invalid #11
       1 | element.getAttribute("data-foo-bar");
 
 > Output
@@ -831,7 +895,7 @@ Generated by [AVA](https://avajs.dev).
         | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`getAttribute(…)\`.␊
     `
 
-## Invalid #11
+## Invalid #12
       1 | element.getAttribute("data-foo");
 
 > Output
@@ -847,7 +911,7 @@ Generated by [AVA](https://avajs.dev).
         | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Prefer \`.dataset\` over \`getAttribute(…)\`.␊
     `
 
-## Invalid #12
+## Invalid #13
       1 | element.querySelector("#selector").getAttribute("data-AllowAccess");
 
 > Output
diff --git a/test/snapshots/prefer-dom-node-dataset.mjs.snap b/test/snapshots/prefer-dom-node-dataset.mjs.snap
index e7ad80f47d..06a2fc61c0 100644
Binary files a/test/snapshots/prefer-dom-node-dataset.mjs.snap and b/test/snapshots/prefer-dom-node-dataset.mjs.snap differ