diff --git a/boa/src/builtins/error/mod.rs b/boa/src/builtins/error/mod.rs
index e094d7b0ab..4cb9c7c5ae 100644
--- a/boa/src/builtins/error/mod.rs
+++ b/boa/src/builtins/error/mod.rs
@@ -23,7 +23,7 @@ pub(crate) mod range;
 pub(crate) mod reference;
 pub(crate) mod syntax;
 pub(crate) mod r#type;
-// pub(crate) mod uri;
+pub(crate) mod uri;
 
 #[cfg(test)]
 mod tests;
@@ -33,7 +33,7 @@ pub(crate) use self::r#type::TypeError;
 pub(crate) use self::range::RangeError;
 pub(crate) use self::reference::ReferenceError;
 pub(crate) use self::syntax::SyntaxError;
-// pub(crate) use self::uri::UriError;
+pub(crate) use self::uri::UriError;
 
 /// Built-in `Error` object.
 #[derive(Debug, Clone, Copy)]
diff --git a/boa/src/builtins/error/tests.rs b/boa/src/builtins/error/tests.rs
index 5596ce4d50..5332f706b0 100644
--- a/boa/src/builtins/error/tests.rs
+++ b/boa/src/builtins/error/tests.rs
@@ -53,3 +53,28 @@ fn eval_error_to_string() {
         "\"EvalError\""
     );
 }
+
+#[test]
+fn uri_error_name() {
+    let mut ctx = Context::new();
+    assert_eq!(forward(&mut ctx, "URIError.name"), "\"URIError\"");
+}
+
+#[test]
+fn uri_error_length() {
+    let mut ctx = Context::new();
+    assert_eq!(forward(&mut ctx, "URIError.length"), "1");
+}
+
+#[test]
+fn uri_error_to_string() {
+    let mut ctx = Context::new();
+    assert_eq!(
+        forward(&mut ctx, "new URIError('hello').toString()"),
+        "\"URIError: hello\""
+    );
+    assert_eq!(
+        forward(&mut ctx, "new URIError().toString()"),
+        "\"URIError\""
+    );
+}
diff --git a/boa/src/builtins/error/uri.rs b/boa/src/builtins/error/uri.rs
new file mode 100644
index 0000000000..ca8c860328
--- /dev/null
+++ b/boa/src/builtins/error/uri.rs
@@ -0,0 +1,68 @@
+//! This module implements the global `URIError` object.
+//!
+//! The `URIError` object represents an error when a global URI handling
+//! function was used in a wrong way.
+//!
+//! More information:
+//!  - [MDN documentation][mdn]
+//!  - [ECMAScript reference][spec]
+//!
+//! [spec]: https://tc39.es/ecma262/#sec-native-error-types-used-in-this-standard-urierror
+//! [mdn]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/URIError
+
+use crate::{
+    builtins::BuiltIn,
+    object::{ConstructorBuilder, ObjectData},
+    profiler::BoaProfiler,
+    property::Attribute,
+    Context, Result, Value,
+};
+
+/// JavaScript `URIError` impleentation.
+#[derive(Debug, Clone, Copy)]
+pub(crate) struct UriError;
+
+impl BuiltIn for UriError {
+    const NAME: &'static str = "URIError";
+
+    fn attribute() -> Attribute {
+        Attribute::WRITABLE | Attribute::NON_ENUMERABLE | Attribute::CONFIGURABLE
+    }
+
+    fn init(context: &mut Context) -> (&'static str, Value, Attribute) {
+        let _timer = BoaProfiler::global().start_event(Self::NAME, "init");
+
+        let error_prototype = context.standard_objects().error_object().prototype();
+        let attribute = Attribute::WRITABLE | Attribute::NON_ENUMERABLE | Attribute::CONFIGURABLE;
+        let uri_error_object = ConstructorBuilder::with_standard_object(
+            context,
+            Self::constructor,
+            context.standard_objects().uri_error_object().clone(),
+        )
+        .name(Self::NAME)
+        .length(Self::LENGTH)
+        .inherit(error_prototype.into())
+        .property("name", Self::NAME, attribute)
+        .property("message", "", attribute)
+        .build();
+
+        (Self::NAME, uri_error_object.into(), Self::attribute())
+    }
+}
+
+impl UriError {
+    /// The amount of arguments this function object takes.
+    pub(crate) const LENGTH: usize = 1;
+
+    /// Create a new error object.
+    pub(crate) fn constructor(this: &Value, args: &[Value], ctx: &mut Context) -> Result<Value> {
+        if let Some(message) = args.get(0) {
+            this.set_field("message", message.to_string(ctx)?);
+        }
+
+        // This value is used by console.log and other routines to match Object type
+        // to its Javascript Identifier (global constructor method name)
+        this.set_data(ObjectData::Error);
+        Ok(this.clone())
+    }
+}
diff --git a/boa/src/builtins/mod.rs b/boa/src/builtins/mod.rs
index 751877cfd2..594b54f8f2 100644
--- a/boa/src/builtins/mod.rs
+++ b/boa/src/builtins/mod.rs
@@ -27,7 +27,7 @@ pub(crate) use self::{
     bigint::BigInt,
     boolean::Boolean,
     date::Date,
-    error::{Error, EvalError, RangeError, ReferenceError, SyntaxError, TypeError},
+    error::{Error, EvalError, RangeError, ReferenceError, SyntaxError, TypeError, UriError},
     function::BuiltInFunctionObject,
     global_this::GlobalThis,
     infinity::Infinity,
@@ -83,6 +83,7 @@ pub fn init(context: &mut Context) {
         TypeError::init,
         SyntaxError::init,
         EvalError::init,
+        UriError::init,
         #[cfg(feature = "console")]
         console::Console::init,
     ];
diff --git a/boa/src/builtins/object/mod.rs b/boa/src/builtins/object/mod.rs
index 2152ed2495..011fc2d607 100644
--- a/boa/src/builtins/object/mod.rs
+++ b/boa/src/builtins/object/mod.rs
@@ -156,7 +156,7 @@ impl Object {
     /// [spec]: https://tc39.es/ecma262/#sec-object.defineproperties
     /// [mdn]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/defineProperties
     pub fn define_properties(_: &Value, args: &[Value], ctx: &mut Context) -> Result<Value> {
-        let arg = args.get(0).cloned().unwrap_or(Value::undefined());
+        let arg = args.get(0).cloned().unwrap_or_default();
         let arg_obj = arg.as_object_mut();
         if let Some(mut obj) = arg_obj {
             let props = args.get(1).cloned().unwrap_or_else(Value::undefined);
diff --git a/boa/src/context.rs b/boa/src/context.rs
index 9e9bd788e0..314c37da4a 100644
--- a/boa/src/context.rs
+++ b/boa/src/context.rs
@@ -82,6 +82,7 @@ pub struct StandardObjects {
     range_error: StandardConstructor,
     syntax_error: StandardConstructor,
     eval_error: StandardConstructor,
+    uri_error: StandardConstructor,
 }
 
 impl StandardObjects {
@@ -159,6 +160,10 @@ impl StandardObjects {
     pub fn eval_error_object(&self) -> &StandardConstructor {
         &self.eval_error
     }
+
+    pub fn uri_error_object(&self) -> &StandardConstructor {
+        &self.uri_error
+    }
 }
 
 /// Javascript context. It is the primary way to interact with the runtime.
@@ -393,6 +398,19 @@ impl Context {
         .expect("Into<String> used as message")
     }
 
+    /// Constructs a `URIError` with the specified message.
+    pub fn construct_uri_error<M>(&mut self, message: M) -> Value
+    where
+        M: Into<String>,
+    {
+        New::from(Call::new(
+            Identifier::from("URIError"),
+            vec![Const::from(message.into()).into()],
+        ))
+        .run(self)
+        .expect("Into<String> used as message")
+    }
+
     /// Throws a `EvalError` with the specified message.
     pub fn throw_eval_error<M>(&mut self, message: M) -> Result<Value>
     where
@@ -401,6 +419,14 @@ impl Context {
         Err(self.construct_eval_error(message))
     }
 
+    /// Throws a `URIError` with the specified message.
+    pub fn throw_uri_error<M>(&mut self, message: M) -> Result<Value>
+    where
+        M: Into<String>,
+    {
+        Err(self.construct_uri_error(message))
+    }
+
     /// Utility to create a function Value for Function Declarations, Arrow Functions or Function Expressions
     pub(crate) fn create_function<P, B>(
         &mut self,