diff --git a/kubernetes/loculus/templates/_possiblePriorityClassName.tpl b/kubernetes/loculus/templates/_possiblePriorityClassName.tpl
new file mode 100644
index 000000000..3b8b29e30
--- /dev/null
+++ b/kubernetes/loculus/templates/_possiblePriorityClassName.tpl
@@ -0,0 +1,5 @@
+{{- define "possiblePriorityClassName" -}}
+{{- if .Values.podPriorityClassName }}
+priorityClassName: {{ .Values.podPriorityClassName }}
+{{- end -}}
+{{- end -}}
diff --git a/kubernetes/loculus/templates/ena-submission-deployment.yaml b/kubernetes/loculus/templates/ena-submission-deployment.yaml
index 8a05108c4..6f0d3ac20 100644
--- a/kubernetes/loculus/templates/ena-submission-deployment.yaml
+++ b/kubernetes/loculus/templates/ena-submission-deployment.yaml
@@ -20,6 +20,7 @@ spec:
         app: loculus
         component: loculus-ena-submission
     spec:
+      {{- include "possiblePriorityClassName" . | nindent 6 }}
       initContainers:
         - name: ena-submission-flyway
           image: "ghcr.io/loculus-project/ena-submission-flyway:{{ $dockerTag }}"
diff --git a/kubernetes/loculus/templates/ingest-deployment.yaml b/kubernetes/loculus/templates/ingest-deployment.yaml
index 8d49d2a88..48be4bdbc 100644
--- a/kubernetes/loculus/templates/ingest-deployment.yaml
+++ b/kubernetes/loculus/templates/ingest-deployment.yaml
@@ -23,6 +23,7 @@ spec:
       annotations:
         argocd.argoproj.io/sync-options: Force=true,Replace=true
     spec:
+      {{- include "possiblePriorityClassName" $ | nindent 6 }}
       containers:
         - name: ingest-{{ $key }}
           image: {{ $value.ingest.image}}:{{ $dockerTag }}
diff --git a/kubernetes/loculus/templates/keycloak-deployment.yaml b/kubernetes/loculus/templates/keycloak-deployment.yaml
index b71e39f11..b2b875dfe 100644
--- a/kubernetes/loculus/templates/keycloak-deployment.yaml
+++ b/kubernetes/loculus/templates/keycloak-deployment.yaml
@@ -29,6 +29,7 @@ spec:
         app: loculus
         component: keycloak
     spec:
+     {{- include "possiblePriorityClassName" . | nindent 6 }}
       initContainers:
 {{- include "loculus.configProcessor" (dict "name" "keycloak-config" "dockerTag" $dockerTag) | nindent 8 }}
         - name: keycloak-theme-prep
diff --git a/kubernetes/loculus/templates/lapis-silo-deployment.yaml b/kubernetes/loculus/templates/lapis-silo-deployment.yaml
index d75b96b3c..bedd9e819 100644
--- a/kubernetes/loculus/templates/lapis-silo-deployment.yaml
+++ b/kubernetes/loculus/templates/lapis-silo-deployment.yaml
@@ -22,6 +22,7 @@ spec:
         app: loculus
         component: lapis-silo-{{ $key }}
     spec:
+      {{- include "possiblePriorityClassName" $ | nindent 6 }}
       initContainers:
         {{- include "loculus.configProcessor" (dict "name" "lapis-silo-database-config" "dockerTag" $dockerTag) | nindent 8 }}
       containers:
diff --git a/kubernetes/loculus/templates/loculus-backend.yaml b/kubernetes/loculus/templates/loculus-backend.yaml
index 9ed03e288..051c1a6fb 100644
--- a/kubernetes/loculus/templates/loculus-backend.yaml
+++ b/kubernetes/loculus/templates/loculus-backend.yaml
@@ -20,6 +20,7 @@ spec:
         app: loculus
         component: backend
     spec:
+      {{- include "possiblePriorityClassName" . | nindent 6 }}
       initContainers:
 {{- include "loculus.configProcessor" (dict "name" "loculus-backend-config" "dockerTag" $dockerTag) | nindent 8 }}
       containers:
diff --git a/kubernetes/loculus/templates/loculus-preprocessing-deployment.yaml b/kubernetes/loculus/templates/loculus-preprocessing-deployment.yaml
index 0beb071c1..a0377c804 100644
--- a/kubernetes/loculus/templates/loculus-preprocessing-deployment.yaml
+++ b/kubernetes/loculus/templates/loculus-preprocessing-deployment.yaml
@@ -30,6 +30,7 @@ spec:
         app: loculus
         component: loculus-preprocessing-{{ $organism }}-v{{ $processingConfig.version }}-{{ $processingIndex }}
     spec:
+      {{- include "possiblePriorityClassName" $ | nindent 6 }}
       containers:
         - name: preprocessing-{{ $organism }}
           image: {{ $processingConfig.image}}:{{ $dockerTag }}
diff --git a/kubernetes/loculus/templates/loculus-website.yaml b/kubernetes/loculus/templates/loculus-website.yaml
index a36173b36..987382499 100644
--- a/kubernetes/loculus/templates/loculus-website.yaml
+++ b/kubernetes/loculus/templates/loculus-website.yaml
@@ -20,6 +20,7 @@ spec:
         app: loculus
         component: website
     spec:
+      {{- include "possiblePriorityClassName" . | nindent 6 }}
       initContainers:
 {{- include "loculus.configProcessor" (dict "name" "loculus-website-config" "dockerTag" $dockerTag) | nindent 8 }}
       containers: