diff --git a/charts/descheduler/templates/_helpers.tpl b/charts/descheduler/templates/_helpers.tpl
index fb540d0f0..3cfa655ac 100644
--- a/charts/descheduler/templates/_helpers.tpl
+++ b/charts/descheduler/templates/_helpers.tpl
@@ -24,6 +24,14 @@ If release name contains chart name it will be used as a full name.
 {{- end -}}
 {{- end -}}
 
+{{/*
+Expand the namespace of the release.
+Allows overriding it for multi-namespace deployments in combined charts.
+*/}}
+{{- define "descheduler.namespace" -}}
+{{- default .Release.Namespace .Values.namespaceOverride | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
 {{/*
 Create chart name and version as used by the chart label.
 */}}
diff --git a/charts/descheduler/values.yaml b/charts/descheduler/values.yaml
index 7013ce52f..b6b529614 100644
--- a/charts/descheduler/values.yaml
+++ b/charts/descheduler/values.yaml
@@ -39,6 +39,9 @@ podSecurityContext: {}
 nameOverride: ""
 fullnameOverride: ""
 
+# -- Override the deployment namespace; defaults to .Release.Namespace
+namespaceOverride: ""
+
 # labels that'll be applied to all resources
 commonLabels: {}