diff --git a/doc/api/util.md b/doc/api/util.md
index 3d61e24d148596..3306407b85968b 100644
--- a/doc/api/util.md
+++ b/doc/api/util.md
@@ -2379,6 +2379,24 @@ util.types.isBigInt64Array(new BigInt64Array());   // Returns true
 util.types.isBigInt64Array(new BigUint64Array());  // Returns false
 ```
 
+### `util.types.isBigIntObject(value)`
+
+<!-- YAML
+added: v10.4.0
+-->
+
+* `value` {any}
+* Returns: {boolean}
+
+Returns `true` if the value is a BigInt object, e.g. created
+by `Object(BigInt(123))`.
+
+```js
+util.types.isBigIntObject(Object(BigInt(123)));   // Returns true
+util.types.isBigIntObject(BigInt(123));   // Returns false
+util.types.isBigIntObject(123);  // Returns false
+```
+
 ### `util.types.isBigUint64Array(value)`
 
 <!-- YAML