diff --git a/boa_engine/src/builtins/array/mod.rs b/boa_engine/src/builtins/array/mod.rs
index c31fd8f8a5b..7404a876cfb 100644
--- a/boa_engine/src/builtins/array/mod.rs
+++ b/boa_engine/src/builtins/array/mod.rs
@@ -25,7 +25,7 @@ use crate::{
     context::intrinsics::StandardConstructors,
     object::{
         internal_methods::get_prototype_from_constructor, ConstructorBuilder, FunctionBuilder,
-        JsObject, ObjectData,
+        JsFunction, JsObject, ObjectData,
     },
     property::{Attribute, PropertyDescriptor, PropertyNameKind},
     symbol::WellKnownSymbols,
@@ -2857,7 +2857,7 @@ impl Array {
         }
     }
 
-    pub(crate) fn values_intrinsic(context: &mut Context) -> JsObject {
+    pub(crate) fn values_intrinsic(context: &mut Context) -> JsFunction {
         FunctionBuilder::native(context, Self::values)
             .name("values")
             .length(0)
diff --git a/boa_engine/src/class.rs b/boa_engine/src/class.rs
index e61123d615c..94f81452692 100644
--- a/boa_engine/src/class.rs
+++ b/boa_engine/src/class.rs
@@ -63,7 +63,7 @@
 
 use crate::{
     builtins::function::NativeFunctionSignature,
-    object::{ConstructorBuilder, JsObject, NativeObject, ObjectData, PROTOTYPE},
+    object::{ConstructorBuilder, JsFunction, JsObject, NativeObject, ObjectData, PROTOTYPE},
     property::{Attribute, PropertyDescriptor, PropertyKey},
     Context, JsResult, JsValue,
 };
@@ -168,8 +168,8 @@ impl<'context> ClassBuilder<'context> {
     }
 
     #[inline]
-    pub(crate) fn build(mut self) -> JsObject {
-        self.builder.build()
+    pub(crate) fn build(mut self) -> JsFunction {
+        JsFunction::from_object_unchecked(self.builder.build().into())
     }
 
     /// Add a method to the class.
@@ -239,8 +239,8 @@ impl<'context> ClassBuilder<'context> {
     pub fn accessor<K>(
         &mut self,
         key: K,
-        get: Option<JsObject>,
-        set: Option<JsObject>,
+        get: Option<JsFunction>,
+        set: Option<JsFunction>,
         attribute: Attribute,
     ) -> &mut Self
     where
@@ -257,8 +257,8 @@ impl<'context> ClassBuilder<'context> {
     pub fn static_accessor<K>(
         &mut self,
         key: K,
-        get: Option<JsObject>,
-        set: Option<JsObject>,
+        get: Option<JsFunction>,
+        set: Option<JsFunction>,
         attribute: Attribute,
     ) -> &mut Self
     where
diff --git a/boa_engine/src/object/jsarray.rs b/boa_engine/src/object/jsarray.rs
index 1f69efdc738..c3d75c949d3 100644
--- a/boa_engine/src/object/jsarray.rs
+++ b/boa_engine/src/object/jsarray.rs
@@ -1,6 +1,6 @@
 use crate::{
     builtins::Array,
-    object::{JsObject, JsObjectType},
+    object::{JsFunction, JsObject, JsObjectType},
     value::IntoOrUndefined,
     Context, JsResult, JsString, JsValue,
 };
@@ -207,7 +207,7 @@ impl JsArray {
     #[inline]
     pub fn find(
         &self,
-        predicate: JsObject,
+        predicate: JsFunction,
         this_arg: Option<JsValue>,
         context: &mut Context,
     ) -> JsResult<JsValue> {
@@ -221,7 +221,7 @@ impl JsArray {
     #[inline]
     pub fn filter(
         &self,
-        callback: JsObject,
+        callback: JsFunction,
         this_arg: Option<JsValue>,
         context: &mut Context,
     ) -> JsResult<Self> {
@@ -240,7 +240,7 @@ impl JsArray {
     #[inline]
     pub fn map(
         &self,
-        callback: JsObject,
+        callback: JsFunction,
         this_arg: Option<JsValue>,
         context: &mut Context,
     ) -> JsResult<Self> {
@@ -259,7 +259,7 @@ impl JsArray {
     #[inline]
     pub fn every(
         &self,
-        callback: JsObject,
+        callback: JsFunction,
         this_arg: Option<JsValue>,
         context: &mut Context,
     ) -> JsResult<bool> {
@@ -277,7 +277,7 @@ impl JsArray {
     #[inline]
     pub fn some(
         &self,
-        callback: JsObject,
+        callback: JsFunction,
         this_arg: Option<JsValue>,
         context: &mut Context,
     ) -> JsResult<bool> {
@@ -293,7 +293,7 @@ impl JsArray {
     }
 
     #[inline]
-    pub fn sort(&self, compare_fn: Option<JsObject>, context: &mut Context) -> JsResult<Self> {
+    pub fn sort(&self, compare_fn: Option<JsFunction>, context: &mut Context) -> JsResult<Self> {
         Array::sort(
             &self.inner.clone().into(),
             &[compare_fn.into_or_undefined()],
@@ -325,7 +325,7 @@ impl JsArray {
     #[inline]
     pub fn reduce(
         &self,
-        callback: JsObject,
+        callback: JsFunction,
         initial_value: Option<JsValue>,
         context: &mut Context,
     ) -> JsResult<JsValue> {
@@ -339,7 +339,7 @@ impl JsArray {
     #[inline]
     pub fn reduce_right(
         &self,
-        callback: JsObject,
+        callback: JsFunction,
         initial_value: Option<JsValue>,
         context: &mut Context,
     ) -> JsResult<JsValue> {
diff --git a/boa_engine/src/object/jsfunction.rs b/boa_engine/src/object/jsfunction.rs
new file mode 100644
index 00000000000..dd6b90ae1d8
--- /dev/null
+++ b/boa_engine/src/object/jsfunction.rs
@@ -0,0 +1,53 @@
+use crate::{
+    object::{JsObject, JsObjectType},
+    Context, JsResult, JsValue,
+};
+use boa_gc::{Finalize, Trace};
+use std::ops::Deref;
+
+/// JavaScript `Function` rust object.
+#[derive(Debug, Clone, Trace, Finalize)]
+pub struct JsFunction {
+    inner: JsObject,
+}
+
+impl JsFunction {
+    #[inline]
+    pub(crate) fn from_object_unchecked(object: JsObject) -> Self {
+        Self { inner: object }
+    }
+
+    #[inline]
+    pub fn from_object(object: JsObject, context: &mut Context) -> JsResult<Self> {
+        if object.borrow().is_function() {
+            Ok(Self::from_object_unchecked(object))
+        } else {
+            context.throw_type_error("object is not an Function")
+        }
+    }
+}
+
+impl From<JsFunction> for JsObject {
+    #[inline]
+    fn from(o: JsFunction) -> Self {
+        o.inner.clone()
+    }
+}
+
+impl From<JsFunction> for JsValue {
+    #[inline]
+    fn from(o: JsFunction) -> Self {
+        o.inner.clone().into()
+    }
+}
+
+impl Deref for JsFunction {
+    type Target = JsObject;
+
+    #[inline]
+    fn deref(&self) -> &Self::Target {
+        &self.inner
+    }
+}
+
+impl JsObjectType for JsFunction {}
diff --git a/boa_engine/src/object/jstypedarray.rs b/boa_engine/src/object/jstypedarray.rs
index 02b28e30109..5824009b764 100644
--- a/boa_engine/src/object/jstypedarray.rs
+++ b/boa_engine/src/object/jstypedarray.rs
@@ -1,6 +1,6 @@
 use crate::{
     builtins::typed_array::TypedArray,
-    object::{JsArray, JsObject, JsObjectType},
+    object::{JsArray, JsFunction, JsObject, JsObjectType},
     value::IntoOrUndefined,
     Context, JsResult, JsString, JsValue,
 };
@@ -21,7 +21,7 @@ impl JsTypedArray {
                 inner: object.into(),
             })
         } else {
-            context.throw_type_error("object is not an TypedArray")
+            context.throw_type_error("object is not a TypedArray")
         }
     }
 
@@ -91,7 +91,7 @@ impl JsTypedArray {
 
     pub fn every(
         &self,
-        predicate: JsObject,
+        predicate: JsFunction,
         this_arg: Option<JsValue>,
         context: &mut Context,
     ) -> JsResult<bool> {
@@ -109,7 +109,7 @@ impl JsTypedArray {
     #[inline]
     pub fn some(
         &self,
-        callback: JsObject,
+        callback: JsFunction,
         this_arg: Option<JsValue>,
         context: &mut Context,
     ) -> JsResult<bool> {
@@ -125,7 +125,7 @@ impl JsTypedArray {
     }
 
     #[inline]
-    pub fn sort(&self, compare_fn: Option<JsObject>, context: &mut Context) -> JsResult<Self> {
+    pub fn sort(&self, compare_fn: Option<JsFunction>, context: &mut Context) -> JsResult<Self> {
         TypedArray::sort(&self.inner, &[compare_fn.into_or_undefined()], context)?;
 
         Ok(self.clone())
@@ -134,7 +134,7 @@ impl JsTypedArray {
     #[inline]
     pub fn filter(
         &self,
-        callback: JsObject,
+        callback: JsFunction,
         this_arg: Option<JsValue>,
         context: &mut Context,
     ) -> JsResult<Self> {
@@ -150,7 +150,7 @@ impl JsTypedArray {
     #[inline]
     pub fn map(
         &self,
-        callback: JsObject,
+        callback: JsFunction,
         this_arg: Option<JsValue>,
         context: &mut Context,
     ) -> JsResult<Self> {
@@ -166,7 +166,7 @@ impl JsTypedArray {
     #[inline]
     pub fn reduce(
         &self,
-        callback: JsObject,
+        callback: JsFunction,
         initial_value: Option<JsValue>,
         context: &mut Context,
     ) -> JsResult<JsValue> {
@@ -180,7 +180,7 @@ impl JsTypedArray {
     #[inline]
     pub fn reduce_right(
         &self,
-        callback: JsObject,
+        callback: JsFunction,
         initial_value: Option<JsValue>,
         context: &mut Context,
     ) -> JsResult<JsValue> {
@@ -216,7 +216,7 @@ impl JsTypedArray {
     #[inline]
     pub fn find(
         &self,
-        predicate: JsObject,
+        predicate: JsFunction,
         this_arg: Option<JsValue>,
         context: &mut Context,
     ) -> JsResult<JsValue> {
diff --git a/boa_engine/src/object/mod.rs b/boa_engine/src/object/mod.rs
index 9543a51b2e4..9b139a89404 100644
--- a/boa_engine/src/object/mod.rs
+++ b/boa_engine/src/object/mod.rs
@@ -58,12 +58,14 @@ mod tests;
 
 pub(crate) mod internal_methods;
 mod jsarray;
+mod jsfunction;
 mod jsobject;
 mod jstypedarray;
 mod operations;
 mod property_map;
 
 pub use jsarray::*;
+pub use jsfunction::*;
 pub use jstypedarray::*;
 
 pub(crate) trait JsObjectType:
@@ -1505,7 +1507,7 @@ impl<'context> FunctionBuilder<'context> {
 
     /// Build the function object.
     #[inline]
-    pub fn build(self) -> JsObject {
+    pub fn build(self) -> JsFunction {
         let function = JsObject::from_proto_and_data(
             self.context
                 .intrinsics()
@@ -1521,7 +1523,7 @@ impl<'context> FunctionBuilder<'context> {
         function.insert_property("length", property.clone().value(self.length));
         function.insert_property("name", property.value(self.name));
 
-        function
+        JsFunction::from_object_unchecked(function)
     }
 
     /// Initializes the `Function.prototype` function object.
@@ -1806,8 +1808,8 @@ impl<'context> ConstructorBuilder<'context> {
     pub fn accessor<K>(
         &mut self,
         key: K,
-        get: Option<JsObject>,
-        set: Option<JsObject>,
+        get: Option<JsFunction>,
+        set: Option<JsFunction>,
         attribute: Attribute,
     ) -> &mut Self
     where
@@ -1827,8 +1829,8 @@ impl<'context> ConstructorBuilder<'context> {
     pub fn static_accessor<K>(
         &mut self,
         key: K,
-        get: Option<JsObject>,
-        set: Option<JsObject>,
+        get: Option<JsFunction>,
+        set: Option<JsFunction>,
         attribute: Attribute,
     ) -> &mut Self
     where
@@ -1941,7 +1943,7 @@ impl<'context> ConstructorBuilder<'context> {
     }
 
     /// Build the constructor function object.
-    pub fn build(&mut self) -> JsObject {
+    pub fn build(&mut self) -> JsFunction {
         // Create the native function
         let function = Function::Native {
             function: self.function,
@@ -2013,6 +2015,6 @@ impl<'context> ConstructorBuilder<'context> {
             }
         }
 
-        self.object.clone()
+        JsFunction::from_object_unchecked(self.object.clone())
     }
 }