diff --git a/apps/dav/lib/CalDAV/CalendarImpl.php b/apps/dav/lib/CalDAV/CalendarImpl.php
index 4eef1e7f8d3..53cde5a7b75 100644
--- a/apps/dav/lib/CalDAV/CalendarImpl.php
+++ b/apps/dav/lib/CalDAV/CalendarImpl.php
@@ -130,6 +130,13 @@ class CalendarImpl implements ICreateFromString {
 		return $result;
 	}
 
+	/**
+	 * @since 26.0.0
+	 */
+	public function isDeleted(): bool {
+		return $this->calendar->isDeleted();
+	}
+
 	/**
 	 * Create a new calendar event for this calendar
 	 * by way of an ICS string
diff --git a/lib/public/Calendar/ICalendar.php b/lib/public/Calendar/ICalendar.php
index f1f2d5eb6f1..e1644ca82aa 100644
--- a/lib/public/Calendar/ICalendar.php
+++ b/lib/public/Calendar/ICalendar.php
@@ -75,4 +75,10 @@ interface ICalendar {
 	 * @since 13.0.0
 	 */
 	public function getPermissions(): int;
+
+	/**
+	 * Whether the calendar is deleted
+	 * @since 26.0.0
+	 */
+	public function isDeleted(): bool;
 }