diff --git a/paimon-core/src/main/java/org/apache/paimon/iceberg/IcebergCommitCallback.java b/paimon-core/src/main/java/org/apache/paimon/iceberg/IcebergCommitCallback.java
index 5b0a78b828fd..7232ec40487e 100644
--- a/paimon-core/src/main/java/org/apache/paimon/iceberg/IcebergCommitCallback.java
+++ b/paimon-core/src/main/java/org/apache/paimon/iceberg/IcebergCommitCallback.java
@@ -72,6 +72,7 @@
 import org.apache.paimon.types.RowType;
 import org.apache.paimon.utils.DataFilePathFactories;
 import org.apache.paimon.utils.FileStorePathFactory;
+import org.apache.paimon.utils.JsonSerdeUtil;
 import org.apache.paimon.utils.ManifestReadThreadPool;
 import org.apache.paimon.utils.Pair;
 import org.apache.paimon.utils.Preconditions;
@@ -189,8 +190,6 @@ public IcebergCommitCallback(FileStoreTable table, String commitUser) {
                 metadataCommitterFactory == null ? null : metadataCommitterFactory.create(table);
 
         this.fileStorePathFactory = table.store().pathFactory();
-        this.manifestFile = IcebergManifestFile.create(table, pathFactory);
-        this.manifestList = IcebergManifestList.create(table, pathFactory);
 
         this.formatVersion =
                 table.coreOptions().toConfiguration().get(IcebergOptions.FORMAT_VERSION);
@@ -200,6 +199,21 @@ public IcebergCommitCallback(FileStoreTable table, String commitUser) {
                 "Unsupported iceberg format version! Only version 2 or version 3 is valid, but current version is ",
                 formatVersion);
 
+        // Compute Iceberg schema and partition spec for Avro manifest metadata.
+        // Snowflake and other Iceberg readers require these in the manifest file header.
+        IcebergSchema icebergSchema = IcebergSchema.create(table.schema());
+        List<IcebergPartitionField> partitionFields =
+                getPartitionFields(table.schema().partitionKeys(), icebergSchema);
+        IcebergPartitionSpec partitionSpec = new IcebergPartitionSpec(partitionFields);
+        Map<String, String> avroMetadata = new HashMap<>();
+        avroMetadata.put("schema", icebergSchema.toJson());
+        avroMetadata.put("partition-spec", JsonSerdeUtil.toJson(partitionSpec));
+        avroMetadata.put("partition-spec-id", String.valueOf(IcebergPartitionSpec.SPEC_ID));
+        avroMetadata.put("format-version", String.valueOf(formatVersion));
+        this.manifestFile = IcebergManifestFile.create(table, pathFactory, avroMetadata);
+
+        this.manifestList = IcebergManifestList.create(table, pathFactory);
+
         this.indexFileHandler = table.store().newIndexFileHandler();
         this.needAddDvToIceberg = needAddDvToIceberg();
     }
diff --git a/paimon-core/src/main/java/org/apache/paimon/iceberg/manifest/IcebergManifestFile.java b/paimon-core/src/main/java/org/apache/paimon/iceberg/manifest/IcebergManifestFile.java
index 5e43a2e2fa36..01392aaa9c0a 100644
--- a/paimon-core/src/main/java/org/apache/paimon/iceberg/manifest/IcebergManifestFile.java
+++ b/paimon-core/src/main/java/org/apache/paimon/iceberg/manifest/IcebergManifestFile.java
@@ -48,12 +48,16 @@
 import org.apache.paimon.utils.ObjectsFile;
 import org.apache.paimon.utils.PathFactory;
 
+import org.apache.paimon.format.avro.AvroFileFormat;
+
 import javax.annotation.Nullable;
 
 import java.io.IOException;
 import java.util.ArrayList;
+import java.util.HashMap;
 import java.util.Iterator;
 import java.util.List;
+import java.util.Map;
 import java.util.Objects;
 
 import static org.apache.paimon.iceberg.manifest.IcebergConversions.toByteBuffer;
@@ -99,6 +103,11 @@ public String compression() {
     }
 
     public static IcebergManifestFile create(FileStoreTable table, IcebergPathFactory pathFactory) {
+        return create(table, pathFactory, new HashMap<>());
+    }
+
+    public static IcebergManifestFile create(
+            FileStoreTable table, IcebergPathFactory pathFactory, Map<String, String> avroMetadata) {
         RowType partitionType = table.schema().logicalPartitionType();
         Options avroOptions = Options.fromMap(table.options());
         boolean withFirstRowId =
@@ -120,6 +129,7 @@ public static IcebergManifestFile create(FileStoreTable table, IcebergPathFactor
                         + "kv_name_r2_upper_bounds:k129_v130,"
                         + "k_id_k129_v130:129,"
                         + "v_id_k129_v130:130");
+        AvroFileFormat.setAvroMetadata(avroOptions, avroMetadata);
         FileFormat manifestFileAvro = FileFormat.fromIdentifier("avro", avroOptions);
         return new IcebergManifestFile(
                 table.fileIO(),
diff --git a/paimon-format/src/main/java/org/apache/paimon/format/avro/AvroFileFormat.java b/paimon-format/src/main/java/org/apache/paimon/format/avro/AvroFileFormat.java
index 69512d5ee7cf..0f6a023b9c20 100644
--- a/paimon-format/src/main/java/org/apache/paimon/format/avro/AvroFileFormat.java
+++ b/paimon-format/src/main/java/org/apache/paimon/format/avro/AvroFileFormat.java
@@ -63,6 +63,9 @@ public class AvroFileFormat extends FileFormat {
     private static final ConfigOption<Map<String, String>> AVRO_ROW_NAME_MAPPING =
             ConfigOptions.key("avro.row-name-mapping").mapType().defaultValue(new HashMap<>());
 
+    private static final ConfigOption<Map<String, String>> AVRO_METADATA =
+            ConfigOptions.key("avro.metadata").mapType().defaultValue(new HashMap<>());
+
     private final Options options;
     private final int zstdLevel;
 
@@ -92,6 +95,12 @@ public AvroBlockWriter createBlockWriter(
                 AvroSchemaConverter.convertToSchema(rowType, options.get(AVRO_ROW_NAME_MAPPING));
         AvroRowDatumWriter datumWriter = new AvroRowDatumWriter(rowType);
         DataFileWriter<InternalRow> writer = new DataFileWriter<>(datumWriter);
+        Map<String, String> metadata = options.get(AVRO_METADATA);
+        if (metadata != null) {
+            for (Map.Entry<String, String> entry : metadata.entrySet()) {
+                writer.setMeta(entry.getKey(), entry.getValue());
+            }
+        }
         writer.setCodec(createCodecFactory(compression));
         writer.setFlushOnEveryBlock(false);
         writer.create(schema, new CloseShieldOutputStream(out));
@@ -138,4 +147,13 @@ public FormatWriter create(PositionOutputStream out, String compression)
             return createBlockWriter(out, rowType, compression);
         }
     }
+
+    /**
+     * Sets Avro file-level metadata key-value pairs on the given options. These metadata are
+     * written into the Avro container file header and are visible to Iceberg-compatible readers
+     * (e.g. Snowflake).
+     */
+    public static void setAvroMetadata(Options options, Map<String, String> metadata) {
+        options.set(AVRO_METADATA, metadata);
+    }
 }