diff --git a/themes_cern/indico_themes_cern/static/iris_logo.png b/themes_cern/indico_themes_cern/static/iris_logo.png
new file mode 100644
index 00000000..69fce7f2
Binary files /dev/null and b/themes_cern/indico_themes_cern/static/iris_logo.png differ
diff --git a/themes_cern/indico_themes_cern/themes-cern.yaml b/themes_cern/indico_themes_cern/themes-cern.yaml
index 04be9c04..0613426e 100644
--- a/themes_cern/indico_themes_cern/themes-cern.yaml
+++ b/themes_cern/indico_themes_cern/themes-cern.yaml
@@ -200,6 +200,11 @@ definitions:
     stylesheet: ngt.scss
     title: Next Generation Triggers
 
+  iris:
+    <<: *standard_themes_cern
+    stylesheet: iris.scss
+    title: iRIS
+
   # Meetings - CERN Administrative
   administrative: &administrative
     event_types: [conference, meeting]
diff --git a/themes_cern/indico_themes_cern/themes/iris.scss b/themes_cern/indico_themes_cern/themes/iris.scss
new file mode 100644
index 00000000..3530da8d
--- /dev/null
+++ b/themes_cern/indico_themes_cern/themes/iris.scss
@@ -0,0 +1,9 @@
+@use 'base/palette' as *;
+
+$header-bg-color: $light-gray;
+$header-icon-color: $light-black;
+$header-text-color: $black;
+
+@import 'themes/indico';
+
+@include header-logo('themes_cern:iris_logo.png', 10px 15px, 230px, 20%);