diff --git a/tests/unit/vertex_rag/test_rag_constants.py b/tests/unit/vertex_rag/test_rag_constants.py
index a525d2784f..cd2a74e30c 100644
--- a/tests/unit/vertex_rag/test_rag_constants.py
+++ b/tests/unit/vertex_rag/test_rag_constants.py
@@ -18,7 +18,17 @@
 
 from google.cloud import aiplatform
 
-from vertexai.preview import rag
+from vertexai.preview.rag import (
+    EmbeddingModelConfig,
+    RagCorpus,
+    RagFile,
+    RagResource,
+    SlackChannelsSource,
+    SlackChannel,
+    JiraSource,
+    JiraQuery,
+    Weaviate,
+)
 from google.cloud.aiplatform_v1beta1 import (
     GoogleDriveSource,
     RagFileChunkingConfig,
@@ -32,6 +42,7 @@
     SlackSource as GapicSlackSource,
     RagContexts,
     RetrieveContextsResponse,
+    RagVectorDbConfig,
 )
 from google.cloud.aiplatform_v1beta1.types import api_auth
 from google.protobuf import timestamp_pb2
@@ -47,6 +58,16 @@
 TEST_RAG_CORPUS_RESOURCE_NAME = f"projects/{TEST_PROJECT_NUMBER}/locations/{TEST_REGION}/ragCorpora/{TEST_RAG_CORPUS_ID}"
 
 # RagCorpus
+TEST_WEAVIATE_HTTP_ENDPOINT = "test.weaviate.com"
+TEST_WEAVIATE_COLLECTION_NAME = "test-collection"
+TEST_WEAVIATE_API_KEY_SECRET_VERSION = (
+    "projects/test-project/secrets/test-secret/versions/1"
+)
+TEST_WEAVIATE_CONFIG = Weaviate(
+    weaviate_http_endpoint=TEST_WEAVIATE_HTTP_ENDPOINT,
+    collection_name=TEST_WEAVIATE_COLLECTION_NAME,
+    api_key=TEST_WEAVIATE_API_KEY_SECRET_VERSION,
+)
 TEST_GAPIC_RAG_CORPUS = GapicRagCorpus(
     name=TEST_RAG_CORPUS_RESOURCE_NAME,
     display_name=TEST_CORPUS_DISPLAY_NAME,
@@ -57,15 +78,37 @@
         TEST_PROJECT, TEST_REGION
     )
 )
-TEST_EMBEDDING_MODEL_CONFIG = rag.EmbeddingModelConfig(
+TEST_GAPIC_RAG_CORPUS_WEAVIATE = GapicRagCorpus(
+    name=TEST_RAG_CORPUS_RESOURCE_NAME,
+    display_name=TEST_CORPUS_DISPLAY_NAME,
+    description=TEST_CORPUS_DISCRIPTION,
+    rag_vector_db_config=RagVectorDbConfig(
+        weaviate=RagVectorDbConfig.Weaviate(
+            http_endpoint=TEST_WEAVIATE_HTTP_ENDPOINT,
+            collection_name=TEST_WEAVIATE_COLLECTION_NAME,
+        ),
+        api_auth=api_auth.ApiAuth(
+            api_key_config=api_auth.ApiAuth.ApiKeyConfig(
+                api_key_secret_version=TEST_WEAVIATE_API_KEY_SECRET_VERSION
+            ),
+        ),
+    ),
+)
+TEST_EMBEDDING_MODEL_CONFIG = EmbeddingModelConfig(
     publisher_model="publishers/google/models/textembedding-gecko",
 )
-TEST_RAG_CORPUS = rag.RagCorpus(
+TEST_RAG_CORPUS = RagCorpus(
     name=TEST_RAG_CORPUS_RESOURCE_NAME,
     display_name=TEST_CORPUS_DISPLAY_NAME,
     description=TEST_CORPUS_DISCRIPTION,
     embedding_model_config=TEST_EMBEDDING_MODEL_CONFIG,
 )
+TEST_RAG_CORPUS_WEAVIATE = RagCorpus(
+    name=TEST_RAG_CORPUS_RESOURCE_NAME,
+    display_name=TEST_CORPUS_DISPLAY_NAME,
+    description=TEST_CORPUS_DISCRIPTION,
+    vector_db=TEST_WEAVIATE_CONFIG,
+)
 TEST_PAGE_TOKEN = "test-page-token"
 
 # RagFiles
@@ -165,7 +208,7 @@
     display_name=TEST_FILE_DISPLAY_NAME,
     description=TEST_FILE_DESCRIPTION,
 )
-TEST_RAG_FILE = rag.RagFile(
+TEST_RAG_FILE = RagFile(
     name=TEST_RAG_FILE_RESOURCE_NAME,
     display_name=TEST_FILE_DISPLAY_NAME,
     description=TEST_FILE_DESCRIPTION,
@@ -183,15 +226,15 @@
 TEST_SLACK_API_KEY_SECRET_VERSION_2 = (
     "projects/test-project/secrets/test-secret/versions/2"
 )
-TEST_SLACK_SOURCE = rag.SlackChannelsSource(
+TEST_SLACK_SOURCE = SlackChannelsSource(
     channels=[
-        rag.SlackChannel(
+        SlackChannel(
             channel_id=TEST_SLACK_CHANNEL_ID,
             api_key=TEST_SLACK_API_KEY_SECRET_VERSION,
             start_time=TEST_SLACK_START_TIME,
             end_time=TEST_SLACK_END_TIME,
         ),
-        rag.SlackChannel(
+        SlackChannel(
             channel_id=TEST_SLACK_CHANNEL_ID_2,
             api_key=TEST_SLACK_API_KEY_SECRET_VERSION_2,
         ),
@@ -241,9 +284,9 @@
 TEST_JIRA_API_KEY_SECRET_VERSION = (
     "projects/test-project/secrets/test-secret/versions/1"
 )
-TEST_JIRA_SOURCE = rag.JiraSource(
+TEST_JIRA_SOURCE = JiraSource(
     queries=[
-        rag.JiraQuery(
+        JiraQuery(
             email=TEST_JIRA_EMAIL,
             jira_projects=[TEST_JIRA_PROJECT],
             custom_queries=[TEST_JIRA_CUSTOM_QUERY],
@@ -286,11 +329,11 @@
     ]
 )
 TEST_RETRIEVAL_RESPONSE = RetrieveContextsResponse(contexts=TEST_CONTEXTS)
-TEST_RAG_RESOURCE = rag.RagResource(
+TEST_RAG_RESOURCE = RagResource(
     rag_corpus=TEST_RAG_CORPUS_RESOURCE_NAME,
     rag_file_ids=[TEST_RAG_FILE_ID],
 )
-TEST_RAG_RESOURCE_INVALID_NAME = rag.RagResource(
+TEST_RAG_RESOURCE_INVALID_NAME = RagResource(
     rag_corpus="213lkj-1/23jkl/",
     rag_file_ids=[TEST_RAG_FILE_ID],
 )
diff --git a/tests/unit/vertex_rag/test_rag_data.py b/tests/unit/vertex_rag/test_rag_data.py
index 2b789d6513..fd243920b1 100644
--- a/tests/unit/vertex_rag/test_rag_data.py
+++ b/tests/unit/vertex_rag/test_rag_data.py
@@ -47,6 +47,21 @@ def create_rag_corpus_mock():
         yield create_rag_corpus_mock
 
 
+@pytest.fixture
+def create_rag_corpus_mock_weaviate():
+    with mock.patch.object(
+        VertexRagDataServiceClient,
+        "create_rag_corpus",
+    ) as create_rag_corpus_mock_weaviate:
+        create_rag_corpus_lro_mock = mock.Mock(ga_operation.Operation)
+        create_rag_corpus_lro_mock.done.return_value = True
+        create_rag_corpus_lro_mock.result.return_value = (
+            tc.TEST_GAPIC_RAG_CORPUS_WEAVIATE
+        )
+        create_rag_corpus_mock_weaviate.return_value = create_rag_corpus_lro_mock
+        yield create_rag_corpus_mock_weaviate
+
+
 @pytest.fixture
 def list_rag_corpora_pager_mock():
     with mock.patch.object(
@@ -141,6 +156,7 @@ def list_rag_files_pager_mock():
 def rag_corpus_eq(returned_corpus, expected_corpus):
     assert returned_corpus.name == expected_corpus.name
     assert returned_corpus.display_name == expected_corpus.display_name
+    assert returned_corpus.vector_db.__eq__(expected_corpus.vector_db)
 
 
 def rag_file_eq(returned_file, expected_file):
@@ -191,6 +207,15 @@ def test_create_corpus_success(self):
 
         rag_corpus_eq(rag_corpus, tc.TEST_RAG_CORPUS)
 
+    @pytest.mark.usefixtures("create_rag_corpus_mock_weaviate")
+    def test_create_corpus_weaviate_success(self):
+        rag_corpus = rag.create_corpus(
+            display_name=tc.TEST_CORPUS_DISPLAY_NAME,
+            vector_db=tc.TEST_WEAVIATE_CONFIG,
+        )
+
+        rag_corpus_eq(rag_corpus, tc.TEST_RAG_CORPUS_WEAVIATE)
+
     @pytest.mark.usefixtures("rag_data_client_mock_exception")
     def test_create_corpus_failure(self):
         with pytest.raises(RuntimeError) as e:
diff --git a/vertexai/preview/rag/__init__.py b/vertexai/preview/rag/__init__.py
index fff380b359..56590fed0e 100644
--- a/vertexai/preview/rag/__init__.py
+++ b/vertexai/preview/rag/__init__.py
@@ -38,36 +38,38 @@
 )
 from vertexai.preview.rag.utils.resources import (
     EmbeddingModelConfig,
-    JiraSource,
     JiraQuery,
+    JiraSource,
     RagCorpus,
     RagFile,
     RagResource,
     SlackChannel,
     SlackChannelsSource,
+    Weaviate,
 )
 
 
 __all__ = (
+    "EmbeddingModelConfig",
+    "JiraQuery",
+    "JiraSource",
+    "RagCorpus",
+    "RagFile",
+    "RagResource",
+    "Retrieval",
+    "SlackChannel",
+    "SlackChannelsSource",
+    "VertexRagStore",
+    "Weaviate",
     "create_corpus",
-    "list_corpora",
-    "get_corpus",
     "delete_corpus",
-    "upload_file",
+    "delete_file",
+    "get_corpus",
+    "get_file",
     "import_files",
     "import_files_async",
-    "get_file",
+    "list_corpora",
     "list_files",
-    "delete_file",
     "retrieval_query",
-    "EmbeddingModelConfig",
-    "Retrieval",
-    "VertexRagStore",
-    "RagResource",
-    "RagFile",
-    "RagCorpus",
-    "JiraSource",
-    "JiraQuery",
-    "SlackChannel",
-    "SlackChannelsSource",
+    "upload_file",
 )
diff --git a/vertexai/preview/rag/rag_data.py b/vertexai/preview/rag/rag_data.py
index 32da89c0a3..0983037173 100644
--- a/vertexai/preview/rag/rag_data.py
+++ b/vertexai/preview/rag/rag_data.py
@@ -48,6 +48,7 @@
     RagCorpus,
     RagFile,
     SlackChannelsSource,
+    Weaviate,
 )
 
 
@@ -55,6 +56,7 @@ def create_corpus(
     display_name: Optional[str] = None,
     description: Optional[str] = None,
     embedding_model_config: Optional[EmbeddingModelConfig] = None,
+    vector_db: Optional[Weaviate] = None,
 ) -> RagCorpus:
     """Creates a new RagCorpus resource.
 
@@ -76,6 +78,8 @@ def create_corpus(
             consist of any UTF-8 characters.
         description: The description of the RagCorpus.
         embedding_model_config: The embedding model config.
+        vector_db: The vector db config of the RagCorpus. If unspecified, the
+            default database Spanner is used.
     Returns:
         RagCorpus.
     Raises:
@@ -88,9 +92,14 @@ def create_corpus(
 
     rag_corpus = GapicRagCorpus(display_name=display_name, description=description)
     if embedding_model_config:
-        rag_corpus = _gapic_utils.set_embedding_model_config(
-            embedding_model_config,
-            rag_corpus,
+        _gapic_utils.set_embedding_model_config(
+            embedding_model_config=embedding_model_config,
+            rag_corpus=rag_corpus,
+        )
+    if vector_db is not None:
+        _gapic_utils.set_vector_db(
+            vector_db=vector_db,
+            rag_corpus=rag_corpus,
         )
 
     request = CreateRagCorpusRequest(
diff --git a/vertexai/preview/rag/utils/_gapic_utils.py b/vertexai/preview/rag/utils/_gapic_utils.py
index 6cc1c1d316..640fd8c5f0 100644
--- a/vertexai/preview/rag/utils/_gapic_utils.py
+++ b/vertexai/preview/rag/utils/_gapic_utils.py
@@ -28,6 +28,7 @@
     RagFile as GapicRagFile,
     SlackSource as GapicSlackSource,
     JiraSource as GapicJiraSource,
+    RagVectorDbConfig,
 )
 from google.cloud.aiplatform import initializer
 from google.cloud.aiplatform.utils import (
@@ -41,6 +42,7 @@
     RagFile,
     SlackChannelsSource,
     JiraSource,
+    Weaviate,
 )
 
 
@@ -93,8 +95,22 @@ def convert_gapic_to_embedding_model_config(
     return embedding_model_config
 
 
+def convert_gapic_to_vector_db(
+    gapic_vector_db: RagVectorDbConfig,
+) -> Weaviate:
+    """Convert Gapic RagVectorDbConfig to Weaviate."""
+    if gapic_vector_db.__contains__("weaviate"):
+        return Weaviate(
+            weaviate_http_endpoint=gapic_vector_db.weaviate.http_endpoint,
+            collection_name=gapic_vector_db.weaviate.collection_name,
+            api_key=gapic_vector_db.api_auth.api_key_config.api_key_secret_version,
+        )
+    else:
+        return None
+
+
 def convert_gapic_to_rag_corpus(gapic_rag_corpus: GapicRagCorpus) -> RagCorpus:
-    """ "Convert GapicRagCorpus to RagCorpus."""
+    """Convert GapicRagCorpus to RagCorpus."""
     rag_corpus = RagCorpus(
         name=gapic_rag_corpus.name,
         display_name=gapic_rag_corpus.display_name,
@@ -102,12 +118,13 @@ def convert_gapic_to_rag_corpus(gapic_rag_corpus: GapicRagCorpus) -> RagCorpus:
         embedding_model_config=convert_gapic_to_embedding_model_config(
             gapic_rag_corpus.rag_embedding_model_config
         ),
+        vector_db=convert_gapic_to_vector_db(gapic_rag_corpus.rag_vector_db_config),
     )
     return rag_corpus
 
 
 def convert_gapic_to_rag_file(gapic_rag_file: GapicRagFile) -> RagFile:
-    """ "Convert GapicRagFile to RagFile."""
+    """Convert GapicRagFile to RagFile."""
     rag_file = RagFile(
         name=gapic_rag_file.name,
         display_name=gapic_rag_file.display_name,
@@ -315,7 +332,7 @@ def get_file_name(
 def set_embedding_model_config(
     embedding_model_config: EmbeddingModelConfig,
     rag_corpus: GapicRagCorpus,
-) -> GapicRagCorpus:
+) -> None:
     if embedding_model_config.publisher_model and embedding_model_config.endpoint:
         raise ValueError("publisher_model and endpoint cannot be set at the same time.")
     if (
@@ -371,4 +388,27 @@ def set_embedding_model_config(
                 "endpoint must be of the format `projects/{project}/locations/{location}/endpoints/{endpoint}` or `endpoints/{endpoint}`"
             )
 
-    return rag_corpus
+
+def set_vector_db(
+    vector_db: Weaviate,
+    rag_corpus: GapicRagCorpus,
+) -> None:
+    """Sets the vector db configuration for the rag corpus."""
+    if isinstance(vector_db, Weaviate):
+        http_endpoint = vector_db.weaviate_http_endpoint
+        collection_name = vector_db.collection_name
+        api_key = vector_db.api_key
+
+        rag_corpus.rag_vector_db_config = RagVectorDbConfig(
+            weaviate=RagVectorDbConfig.Weaviate(
+                http_endpoint=http_endpoint,
+                collection_name=collection_name,
+            ),
+            api_auth=api_auth.ApiAuth(
+                api_key_config=api_auth.ApiAuth.ApiKeyConfig(
+                    api_key_secret_version=api_key
+                ),
+            ),
+        )
+    else:
+        raise TypeError("vector_db must be a Weaviate.")
diff --git a/vertexai/preview/rag/utils/resources.py b/vertexai/preview/rag/utils/resources.py
index 1b5af451f6..aad7bad35d 100644
--- a/vertexai/preview/rag/utils/resources.py
+++ b/vertexai/preview/rag/utils/resources.py
@@ -69,6 +69,22 @@ class EmbeddingModelConfig:
     model_version_id: Optional[str] = None
 
 
+@dataclasses.dataclass
+class Weaviate:
+    """Weaviate.
+
+    Attributes:
+        weaviate_http_endpoint: The Weaviate DB instance HTTP endpoint
+        collection_name: The corresponding Weaviate collection this corpus maps to
+        api_key: The SecretManager resource name for the Weaviate DB API token. Format:
+            ``projects/{project}/secrets/{secret}/versions/{version}``
+    """
+
+    weaviate_http_endpoint: str
+    collection_name: str
+    api_key: str
+
+
 @dataclasses.dataclass
 class RagCorpus:
     """RAG corpus(output only).
@@ -78,12 +94,15 @@ class RagCorpus:
             ``projects/{project}/locations/{location}/ragCorpora/{rag_corpus_id}``
         display_name: Display name that was configured at client side.
         description: The description of the RagCorpus.
+        embedding_model_config: The embedding model config of the RagCorpus.
+        vector_db: The Vector DB of the RagCorpus.
     """
 
     name: Optional[str] = None
     display_name: Optional[str] = None
     description: Optional[str] = None
     embedding_model_config: Optional[EmbeddingModelConfig] = None
+    vector_db: Optional[Weaviate] = None
 
 
 @dataclasses.dataclass