diff --git a/src/parser-browsers.js b/src/parser-browsers.js
index a6567e1..a6dd494 100644
--- a/src/parser-browsers.js
+++ b/src/parser-browsers.js
@@ -761,11 +761,29 @@ const browsersList = [
     },
   },
   {
-    test: [/vivaldi/i],
-    describe(ua) {
+    test(parser) {
+      // Check Client Hints brands for Vivaldi
+      if (parser.hasBrand('Vivaldi')) {
+        return true;
+      }
+      // Fall back to UA string detection
+      return parser.test(/vivaldi/i);
+    },
+    describe(ua, parser) {
       const browser = {
         name: 'Vivaldi',
       };
+
+      // Try Client Hints brand version first
+      if (parser) {
+        const hintsVersion = parser.getBrandVersion('Vivaldi');
+        if (hintsVersion) {
+          browser.version = hintsVersion;
+          return browser;
+        }
+      }
+
+      // Fall back to UA string version
       const version = Utils.getFirstMatch(/vivaldi\/(\d+(\.?_?\d+)+)/i, ua);
 
       if (version) {
diff --git a/test/acceptance/useragentstrings.yml b/test/acceptance/useragentstrings.yml
index a36a875..6f76be4 100644
--- a/test/acceptance/useragentstrings.yml
+++ b/test/acceptance/useragentstrings.yml
@@ -2595,6 +2595,21 @@
           type: "desktop"
         engine:
           name: "Blink"
+    -
+      ua: "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Safari/537.36 Vivaldi/7.8.3925.66"
+      spec:
+        browser:
+          name: "Vivaldi"
+          version: "7.8.3925.66"
+        os:
+          name: "macOS"
+          version: "10.15.7"
+          versionName: "Catalina"
+        platform:
+          type: "desktop"
+          vendor: "Apple"
+        engine:
+          name: "Blink"
   Generic:
     -
       ua: "Generic/2.15 libww"
diff --git a/test/unit/parser.js b/test/unit/parser.js
index 46d7e25..a9bfb79 100644
--- a/test/unit/parser.js
+++ b/test/unit/parser.js
@@ -419,3 +419,33 @@ test('Parser.getBrandVersion returns version for Brave', (t) => {
   const p = new Parser(BRAVE_UA, false, BRAVE_HINTS);
   t.is(p.getBrandVersion('Brave'), '144');
 });
+
+const VIVALDI_HINTS = {
+  brands: [
+    { brand: 'Vivaldi', version: '7.1' },
+    { brand: 'Chromium', version: '134' },
+    { brand: 'Not_A Brand', version: '24' },
+  ],
+  mobile: false,
+  platform: 'Windows',
+  platformVersion: '15.0.0',
+};
+
+const VIVALDI_UA = 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.36';
+
+test('Parser detects Vivaldi from client hints brands', (t) => {
+  const p = new Parser(VIVALDI_UA, false, VIVALDI_HINTS);
+  t.is(p.getBrowserName(), 'Vivaldi');
+  t.is(p.getBrowserVersion(), '7.1');
+});
+
+test('Parser.hasBrand detects Vivaldi', (t) => {
+  const p = new Parser(VIVALDI_UA, false, VIVALDI_HINTS);
+  t.true(p.hasBrand('Vivaldi'));
+  t.true(p.hasBrand('vivaldi'));
+});
+
+test('Parser.getBrandVersion returns version for Vivaldi', (t) => {
+  const p = new Parser(VIVALDI_UA, false, VIVALDI_HINTS);
+  t.is(p.getBrandVersion('Vivaldi'), '7.1');
+});