diff --git a/cmd/mt-index-cat/main.go b/cmd/mt-index-cat/main.go
index e85ee8e5c5..edb05f91d3 100644
--- a/cmd/mt-index-cat/main.go
+++ b/cmd/mt-index-cat/main.go
@@ -39,6 +39,7 @@ func main() {
 	var prefix string
 	var substr string
 	var suffix string
+	var orgFilter int
 	var regexStr string
 	var regex *regexp.Regexp
 	var tags string
@@ -55,6 +56,7 @@ func main() {
 	globalFlags.StringVar(&prefix, "prefix", "", "only show metrics that have this prefix")
 	globalFlags.StringVar(&substr, "substr", "", "only show metrics that have this substring")
 	globalFlags.StringVar(&suffix, "suffix", "", "only show metrics that have this suffix")
+	globalFlags.IntVar(&orgFilter, "org", -1, "show only metrics with this OrgID (-1 to disable)")
 	globalFlags.StringVar(&partitionStr, "partitions", "*", "only show metrics from the comma separated list of partitions or * for all")
 	globalFlags.IntVar(&btTotalPartitions, "bt-total-partitions", -1, "total number of partitions (when using bigtable and partitions='*')")
 	globalFlags.StringVar(&regexStr, "regex", "", "only show metrics that match this regex")
@@ -318,6 +320,11 @@ func main() {
 			if !strings.Contains(d.Name, substr) {
 				continue
 			}
+
+			if orgFilter != -1 && d.OrgId != uint32(orgFilter) {
+				continue
+			}
+
 			if tags == "none" && len(d.Tags) != 0 {
 				continue
 			}
@@ -364,7 +371,7 @@ func main() {
 		} else {
 			now := time.Now()
 			for _, p := range partitions {
-				defs = btIdx.LoadPartition(p, nil, now)
+				defs = btIdx.LoadPartition(p, nil, now, orgFilter)
 				// set this after doing the query, to assure age can't possibly be negative unless if clocks are misconfigured.
 				out.QueryTime = time.Now().Unix()
 				processDefs(defs)
diff --git a/docs/tools.md b/docs/tools.md
index 86d331725a..3ab5652179 100644
--- a/docs/tools.md
+++ b/docs/tools.md
@@ -201,6 +201,8 @@ global config flags:
     	exclude series that have not been seen for this much time (compared against LastUpdate).  use 0 to disable (default "6h30min")
   -min-stale string
     	exclude series that have been seen in this much time (compared against LastUpdate).  use 0 to disable (default "0")
+  -org int
+    	show only metrics with this OrgID (-1 to disable) (default -1)
   -partitions string
     	only show metrics from the comma separated list of partitions or * for all (default "*")
   -prefix string
diff --git a/idx/bigtable/bigtable.go b/idx/bigtable/bigtable.go
index fda62eed48..a9730f0058 100644
--- a/idx/bigtable/bigtable.go
+++ b/idx/bigtable/bigtable.go
@@ -278,14 +278,14 @@ func (b *BigtableIdx) rebuildIndex() {
 	num := 0
 	var defs []schema.MetricDefinition
 	for _, partition := range cluster.Manager.GetPartitions() {
-		defs = b.LoadPartition(partition, defs[:0], pre)
+		defs = b.LoadPartition(partition, defs[:0], pre, -1)
 		num += b.MemoryIndex.LoadPartition(partition, defs)
 	}
 
 	log.Infof("bigtable-idx: Rebuilding Memory Index Complete. Imported %d. Took %s", num, time.Since(pre))
 }
 
-func (b *BigtableIdx) LoadPartition(partition int32, defs []schema.MetricDefinition, now time.Time) []schema.MetricDefinition {
+func (b *BigtableIdx) LoadPartition(partition int32, defs []schema.MetricDefinition, now time.Time, orgFilter int) []schema.MetricDefinition {
 	ctx := context.Background()
 	rr := bigtable.PrefixRange(fmt.Sprintf("%d_", partition))
 	defsByNames := make(map[string][]schema.MetricDefinition)
@@ -296,6 +296,9 @@ func (b *BigtableIdx) LoadPartition(partition int32, defs []schema.MetricDefinit
 		if marshalErr != nil {
 			return false
 		}
+		if orgFilter != -1 && def.OrgId != uint32(orgFilter) {
+			return true
+		}
 		log.Debugf("bigtable-idx: found def %+v", def)
 		nameWithTags := def.NameWithTags()
 		defsByNames[nameWithTags] = append(defsByNames[nameWithTags], def)