diff --git a/server/src/main/java/org/elasticsearch/action/get/TransportMultiGetAction.java b/server/src/main/java/org/elasticsearch/action/get/TransportMultiGetAction.java
index e09554d0ec3e3..33092c63f1ab7 100644
--- a/server/src/main/java/org/elasticsearch/action/get/TransportMultiGetAction.java
+++ b/server/src/main/java/org/elasticsearch/action/get/TransportMultiGetAction.java
@@ -21,6 +21,7 @@
 import org.elasticsearch.common.inject.Inject;
 import org.elasticsearch.common.util.concurrent.AtomicArray;
 import org.elasticsearch.common.util.concurrent.EsExecutors;
+import org.elasticsearch.core.Tuple;
 import org.elasticsearch.index.shard.ShardId;
 import org.elasticsearch.indices.IndicesService;
 import org.elasticsearch.tasks.Task;
@@ -60,16 +61,24 @@ protected void doExecute(Task task, final MultiGetRequest request, final ActionL
 
         final AtomicArray<MultiGetItemResponse> responses = new AtomicArray<>(request.items.size());
         final Map<ShardId, MultiGetShardRequest> shardRequests = new HashMap<>();
+        // single item cache that maps the provided index name to the resolved one
+        Tuple<String, String> lastResolvedIndex = Tuple.tuple(null, null);
 
         for (int i = 0; i < request.items.size(); i++) {
             MultiGetRequest.Item item = request.items.get(i);
 
             ShardId shardId;
             try {
-                String concreteSingleIndex = indexNameExpressionResolver.concreteSingleIndex(clusterState, item).getName();
+                String concreteSingleIndex;
+                if (item.index().equals(lastResolvedIndex.v1())) {
+                    concreteSingleIndex = lastResolvedIndex.v2();
+                } else {
+                    concreteSingleIndex = indexNameExpressionResolver.concreteSingleIndex(clusterState, item).getName();
+                    lastResolvedIndex = Tuple.tuple(item.index(), concreteSingleIndex);
+                }
                 item.routing(clusterState.metadata().resolveIndexRouting(item.routing(), item.index()));
                 shardId = clusterService.operationRouting()
-                    .getShards(clusterState, concreteSingleIndex, item.id(), item.routing(), null)
+                    .getIndexShardRoutingTable(clusterState, concreteSingleIndex, item.id(), item.routing())
                     .shardId();
             } catch (RoutingMissingException e) {
                 responses.set(i, newItemFailure(e.getIndex().getName(), e.getId(), e));
diff --git a/server/src/main/java/org/elasticsearch/cluster/routing/OperationRouting.java b/server/src/main/java/org/elasticsearch/cluster/routing/OperationRouting.java
index 3128404276dfb..79311e46504b2 100644
--- a/server/src/main/java/org/elasticsearch/cluster/routing/OperationRouting.java
+++ b/server/src/main/java/org/elasticsearch/cluster/routing/OperationRouting.java
@@ -56,6 +56,16 @@ void setUseAdaptiveReplicaSelection(boolean useAdaptiveReplicaSelection) {
         this.useAdaptiveReplicaSelection = useAdaptiveReplicaSelection;
     }
 
+    public IndexShardRoutingTable getIndexShardRoutingTable(
+        ClusterState clusterState,
+        String index,
+        String id,
+        @Nullable String routing
+    ) {
+        IndexRouting indexRouting = IndexRouting.fromIndexMetadata(indexMetadata(clusterState, index));
+        return clusterState.getRoutingTable().shardRoutingTable(index, indexRouting.getShard(id, routing));
+    }
+
     /**
      * Shards to use for a {@code GET} operation.
      * @return A shard iterator that can be used for GETs, or null if e.g. due to preferences no match is found.
@@ -67,8 +77,7 @@ public ShardIterator getShards(
         @Nullable String routing,
         @Nullable String preference
     ) {
-        IndexRouting indexRouting = IndexRouting.fromIndexMetadata(indexMetadata(clusterState, index));
-        IndexShardRoutingTable shards = clusterState.getRoutingTable().shardRoutingTable(index, indexRouting.getShard(id, routing));
+        IndexShardRoutingTable shards = getIndexShardRoutingTable(clusterState, index, id, routing);
         return preferenceActiveShardIterator(shards, clusterState.nodes().getLocalNodeId(), clusterState.nodes(), preference, null, null);
     }