diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7c5386f069b..66c679a888c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -61,8 +61,10 @@
 
 * [CHANGE] Remove backwards compatibility for `thanos_memcached_` prefixed metrics in dashboards and alerts removed in 2.12. #9674
 * [ENHANCEMENT] Unify ingester autoscaling panels on 'Mimir / Writes' dashboard to work for both ingest-storage and non-ingest-storage autoscaling. #9617
+* [ENHANCEMENT] Alerts: Enable configuring job prefix for alerts to prevent clashes with metrics from Loki/Tempo. #9659
 * [ENHANCEMENT] Dashboards: visualize the age of source blocks in the "Mimir / Compactor" dashboard. #9697
 * [ENHANCEMENT] Dashboards: Include block compaction level on queried blocks in 'Mimir / Queries' dashboard. #9706
+
 * [BUGFIX] Dashboards: Fix autoscaling metrics joins when series churn. #9412 #9450 #9432
 * [BUGFIX] Alerts: Fix autoscaling metrics joins in `MimirAutoscalerNotActive` when series churn. #9412
 * [BUGFIX] Alerts: Exclude failed cache "add" operations from alerting since failures are expected in normal operation. #9658
diff --git a/operations/helm/tests/metamonitoring-values-generated/mimir-distributed/templates/metamonitoring/mixin-alerts.yaml b/operations/helm/tests/metamonitoring-values-generated/mimir-distributed/templates/metamonitoring/mixin-alerts.yaml
index b9364ff156b..f866fb0f3dc 100644
--- a/operations/helm/tests/metamonitoring-values-generated/mimir-distributed/templates/metamonitoring/mixin-alerts.yaml
+++ b/operations/helm/tests/metamonitoring-values-generated/mimir-distributed/templates/metamonitoring/mixin-alerts.yaml
@@ -533,7 +533,7 @@ spec:
             expr: |
               max by (cluster, namespace) (memberlist_client_cluster_members_count)
               >
-              (sum by (cluster, namespace) (up{job=~".+/(admin-api|alertmanager|compactor.*|distributor.*|ingester.*|querier.*|ruler|ruler-querier.*|store-gateway.*|cortex|mimir|mimir-write.*|mimir-read.*|mimir-backend.*)"}) + 10)
+              (sum by (cluster, namespace) (up{job=~".*/(admin-api|alertmanager|compactor.*|distributor.*|ingester.*|querier.*|ruler|ruler-querier.*|store-gateway.*|cortex|mimir|mimir-write.*|mimir-read.*|mimir-backend.*)"}) + 10)
             for: 20m
             labels:
               severity: warning
diff --git a/operations/mimir-mixin-compiled-baremetal/alerts.yaml b/operations/mimir-mixin-compiled-baremetal/alerts.yaml
index 1efb58e2127..41ff8e17768 100644
--- a/operations/mimir-mixin-compiled-baremetal/alerts.yaml
+++ b/operations/mimir-mixin-compiled-baremetal/alerts.yaml
@@ -511,7 +511,7 @@ groups:
           expr: |
             max by (cluster, namespace) (memberlist_client_cluster_members_count)
             >
-            (sum by (cluster, namespace) (up{job=~".+/(admin-api|alertmanager|compactor.*|distributor.*|ingester.*|querier.*|ruler|ruler-querier.*|store-gateway.*|cortex|mimir|mimir-write.*|mimir-read.*|mimir-backend.*)"}) + 10)
+            (sum by (cluster, namespace) (up{job=~".*/(admin-api|alertmanager|compactor.*|distributor.*|ingester.*|querier.*|ruler|ruler-querier.*|store-gateway.*|cortex|mimir|mimir-write.*|mimir-read.*|mimir-backend.*)"}) + 10)
           for: 20m
           labels:
             severity: warning
diff --git a/operations/mimir-mixin-compiled/alerts.yaml b/operations/mimir-mixin-compiled/alerts.yaml
index 8bf5007ec69..87696d3be85 100644
--- a/operations/mimir-mixin-compiled/alerts.yaml
+++ b/operations/mimir-mixin-compiled/alerts.yaml
@@ -521,7 +521,7 @@ groups:
           expr: |
             max by (cluster, namespace) (memberlist_client_cluster_members_count)
             >
-            (sum by (cluster, namespace) (up{job=~".+/(admin-api|alertmanager|compactor.*|distributor.*|ingester.*|querier.*|ruler|ruler-querier.*|store-gateway.*|cortex|mimir|mimir-write.*|mimir-read.*|mimir-backend.*)"}) + 10)
+            (sum by (cluster, namespace) (up{job=~".*/(admin-api|alertmanager|compactor.*|distributor.*|ingester.*|querier.*|ruler|ruler-querier.*|store-gateway.*|cortex|mimir|mimir-write.*|mimir-read.*|mimir-backend.*)"}) + 10)
           for: 20m
           labels:
             severity: warning
diff --git a/operations/mimir-mixin/alerts/alerts-utils.libsonnet b/operations/mimir-mixin/alerts/alerts-utils.libsonnet
index 3f3307a100a..3d344020f64 100644
--- a/operations/mimir-mixin/alerts/alerts-utils.libsonnet
+++ b/operations/mimir-mixin/alerts/alerts-utils.libsonnet
@@ -10,10 +10,10 @@
     $._config.product + name,
 
   jobMatcher(job)::
-    'job=~".*/%s"' % formatJobForQuery(job),
+    '%s=~"%s%s"' % [$._config.per_job_label, $._config.alert_job_prefix, formatJobForQuery(job)],
 
   jobNotMatcher(job)::
-    'job!~".*/%s"' % formatJobForQuery(job),
+    '%s!~"%s%s"' % [$._config.per_job_label, $._config.alert_job_prefix, formatJobForQuery(job)],
 
   local formatJobForQuery(job) =
     if std.isArray(job) then '(%s)' % std.join('|', job)
diff --git a/operations/mimir-mixin/alerts/alerts.libsonnet b/operations/mimir-mixin/alerts/alerts.libsonnet
index c47e6ef32d0..63118434fa8 100644
--- a/operations/mimir-mixin/alerts/alerts.libsonnet
+++ b/operations/mimir-mixin/alerts/alerts.libsonnet
@@ -775,8 +775,8 @@ local utils = import 'mixin-utils/utils.libsonnet';
             |||
               max by (%s) (memberlist_client_cluster_members_count)
               >
-              (sum by (%s) (up{%s=~".+/%s"}) + 10)
-            ||| % [$._config.alert_aggregation_labels, $._config.alert_aggregation_labels, $._config.per_job_label, simpleRegexpOpt($._config.job_names.ring_members)],
+              (sum by (%s) (up{%s}) + 10)
+            ||| % [$._config.alert_aggregation_labels, $._config.alert_aggregation_labels, $.jobMatcher($._config.job_names.ring_members)],
           'for': '20m',
           labels: {
             severity: 'warning',
diff --git a/operations/mimir-mixin/config.libsonnet b/operations/mimir-mixin/config.libsonnet
index b9c5dc3bf48..7b11f041338 100644
--- a/operations/mimir-mixin/config.libsonnet
+++ b/operations/mimir-mixin/config.libsonnet
@@ -207,6 +207,9 @@
     // Used to add extra annotations to all alerts, Careful: takes precedence over default annotations.
     alert_extra_annotations: {},
 
+    // Used as the job prefix in alerts that select on job label (e.g. GossipMembersTooHigh, RingMembersMismatch). This can be set to a known namespace to prevent those alerts from firing incorrectly due to selecting similar metrics from Loki/Tempo.
+    alert_job_prefix: '.*/',
+
     // Whether alerts for experimental ingest storage are enabled.
     ingest_storage_enabled: true,