diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3b3c2762bd..5472f421b6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,9 @@ This change log adheres to standards from [Keep a CHANGELOG](https://keepachange
 
 ## Unreleased
 
+### Fixed
+* [`no-unknown-property`]: allow `onLoad` on `<object>` ([#3415][] @OleksiiKachan)
+
 ## [7.31.7] - 2022.09.05
 
 ### Fixed
diff --git a/lib/rules/no-unknown-property.js b/lib/rules/no-unknown-property.js
index 35bb5b0824..56da30a580 100644
--- a/lib/rules/no-unknown-property.js
+++ b/lib/rules/no-unknown-property.js
@@ -73,7 +73,7 @@ const ATTRIBUTE_TAGS_MAP = {
   onEncrypted: ['audio', 'video'],
   onEnded: ['audio', 'video'],
   onError: ['audio', 'video', 'img', 'link', 'source', 'script', 'picture', 'iframe'],
-  onLoad: ['script', 'img', 'link', 'picture', 'iframe'],
+  onLoad: ['script', 'img', 'link', 'picture', 'iframe', 'object'],
   onLoadedData: ['audio', 'video'],
   onLoadedMetadata: ['audio', 'video'],
   onLoadStart: ['audio', 'video'],
diff --git a/tests/lib/rules/no-unknown-property.js b/tests/lib/rules/no-unknown-property.js
index 12f294d70c..3f6155e0c3 100644
--- a/tests/lib/rules/no-unknown-property.js
+++ b/tests/lib/rules/no-unknown-property.js
@@ -66,6 +66,8 @@ ruleTester.run('no-unknown-property', rule, {
     { code: '<source onError={foo} />' },
     { code: '<link onLoad={bar} onError={foo} />' },
     { code: '<link rel="preload" as="image" href="someHref" imageSrcSet="someImageSrcSet" imageSizes="someImageSizes" />' },
+    { code: '<link onLoad={bar} onError={foo} />' },
+    { code: '<object onLoad={bar} />' },
     { code: '<div allowFullScreen webkitAllowFullScreen mozAllowFullScreen />' },
     { code: '<table border="1" />' },
     {
@@ -435,7 +437,7 @@ ruleTester.run('no-unknown-property', rule, {
           data: {
             name: 'onLoad',
             tagName: 'div',
-            allowedTags: 'script, img, link, picture, iframe',
+            allowedTags: 'script, img, link, picture, iframe, object',
           },
         },
       ],