diff --git a/plugin/trino-iceberg/src/main/java/io/trino/plugin/iceberg/IcebergMetadata.java b/plugin/trino-iceberg/src/main/java/io/trino/plugin/iceberg/IcebergMetadata.java
index 86a893df5203..e10f81642e4a 100644
--- a/plugin/trino-iceberg/src/main/java/io/trino/plugin/iceberg/IcebergMetadata.java
+++ b/plugin/trino-iceberg/src/main/java/io/trino/plugin/iceberg/IcebergMetadata.java
@@ -196,6 +196,7 @@
 import static io.trino.plugin.iceberg.IcebergSessionProperties.getExpireSnapshotMinRetention;
 import static io.trino.plugin.iceberg.IcebergSessionProperties.getRemoveOrphanFilesMinRetention;
 import static io.trino.plugin.iceberg.IcebergSessionProperties.isExtendedStatisticsEnabled;
+import static io.trino.plugin.iceberg.IcebergSessionProperties.isMergeManifestsOnWrite;
 import static io.trino.plugin.iceberg.IcebergSessionProperties.isProjectionPushdownEnabled;
 import static io.trino.plugin.iceberg.IcebergSessionProperties.isStatisticsEnabled;
 import static io.trino.plugin.iceberg.IcebergTableProperties.FILE_FORMAT_PROPERTY;
@@ -803,7 +804,7 @@ public Optional<ConnectorOutputMetadata> finishInsert(ConnectorSession session,
                         icebergTable.schema().findType(field.sourceId())))
                 .toArray(Type[]::new);
 
-        AppendFiles appendFiles = transaction.newAppend();
+        AppendFiles appendFiles = isMergeManifestsOnWrite(session) ? transaction.newAppend() : transaction.newFastAppend();
         ImmutableSet.Builder<String> writtenFiles = ImmutableSet.builder();
         for (CommitTaskData task : commitTasks) {
             DataFiles.Builder builder = DataFiles.builder(icebergTable.spec())
diff --git a/plugin/trino-iceberg/src/main/java/io/trino/plugin/iceberg/IcebergSessionProperties.java b/plugin/trino-iceberg/src/main/java/io/trino/plugin/iceberg/IcebergSessionProperties.java
index a15a5b34d433..f377888550ac 100644
--- a/plugin/trino-iceberg/src/main/java/io/trino/plugin/iceberg/IcebergSessionProperties.java
+++ b/plugin/trino-iceberg/src/main/java/io/trino/plugin/iceberg/IcebergSessionProperties.java
@@ -79,6 +79,7 @@ public final class IcebergSessionProperties
     private static final String MINIMUM_ASSIGNED_SPLIT_WEIGHT = "minimum_assigned_split_weight";
     public static final String EXPIRE_SNAPSHOTS_MIN_RETENTION = "expire_snapshots_min_retention";
     public static final String REMOVE_ORPHAN_FILES_MIN_RETENTION = "remove_orphan_files_min_retention";
+    private static final String MERGE_MANIFESTS_ON_WRITE = "merge_manifests_on_write";
 
     private final List<PropertyMetadata<?>> sessionProperties;
 
@@ -258,6 +259,11 @@ public IcebergSessionProperties(
                         "Minimal retention period for remove_orphan_files procedure",
                         icebergConfig.getRemoveOrphanFilesMinRetention(),
                         false))
+                .add(booleanProperty(
+                        MERGE_MANIFESTS_ON_WRITE,
+                        "Compact manifest files when performing write operations",
+                        true,
+                        false))
                 .build();
     }
 
@@ -428,4 +434,9 @@ public static double getMinimumAssignedSplitWeight(ConnectorSession session)
     {
         return session.getProperty(MINIMUM_ASSIGNED_SPLIT_WEIGHT, Double.class);
     }
+
+    public static boolean isMergeManifestsOnWrite(ConnectorSession session)
+    {
+        return session.getProperty(MERGE_MANIFESTS_ON_WRITE, Boolean.class);
+    }
 }