diff --git a/src/x11/reply.rs b/src/x11/reply.rs
index 1bf7e397..1b75eea9 100644
--- a/src/x11/reply.rs
+++ b/src/x11/reply.rs
@@ -483,4 +483,32 @@ derive_xrb! {
 		#[context(properties_len => usize::from(*properties_len))]
 		pub properties: Vec<Atom>,
 	}
+
+	/// The [reply] to a [`GetSelectionOwner` request].
+	///
+	/// [reply]: crate::message::Reply
+	///
+	/// [`GetSelectionOwner` request]: request::GetSelectionOwner
+	#[derive(Derivative, Debug, X11Size, Readable, Writable)]
+	#[derivative(Hash, PartialEq, Eq)]
+	pub struct GetSelectionOwner: Reply for request::GetSelectionOwner {
+		/// The sequence number identifying the [request] that generated this
+		/// [reply].
+		///
+		/// See [`Reply::sequence`] for more information.
+		///
+		/// [request]: crate::message::Request
+		/// [reply]: crate::message::Reply
+		///
+		/// [`Reply::sequence`]: crate::message::Reply::sequence
+		#[sequence]
+		#[derivative(Hash = "ignore", PartialEq = "ignore")]
+		pub sequence: u16,
+
+		/// The owner of the given `selection`.
+		///
+		/// If this is [`None`], then the selection has no owner.
+		pub owner: Option<Window>,
+		[_; ..],
+	}
 }
diff --git a/src/x11/request.rs b/src/x11/request.rs
index 5f382b5e..97725464 100644
--- a/src/x11/request.rs
+++ b/src/x11/request.rs
@@ -1551,4 +1551,28 @@ derive_xrb! {
 		/// current time, this [request] has no effect.
 		pub time: CurrentableTime,
 	}
+
+	/// A [request] that returns the owner of a given selection.
+	///
+	/// # Errors
+	/// An [`Atom` error] is generated if `target` does not refer to a defined
+	/// [atom].
+	///
+	/// [atom]: Atom
+	///
+	/// [`Atom` error]: error::Atom
+	#[derive(Debug, Hash, PartialEq, Eq, X11Size, Readable, Writable)]
+	pub struct GetSelectionOwner: Request(23) -> reply::GetSelectionOwner {
+		/// The selection for which this [request] returns its owner.
+		///
+		/// # Errors
+		/// An [`Atom` error] is generated if this does not refer to a defined
+		/// [atom].
+		///
+		/// [atom]: Atom
+		/// [request]: crate::message::Request
+		///
+		/// [`Atom` error]: error::Atom
+		pub target: Atom,
+	}
 }