diff --git a/.changes/unreleased/Under the Hood-20240125-095453.yaml b/.changes/unreleased/Under the Hood-20240125-095453.yaml
new file mode 100644
index 00000000000..2edb1eb487b
--- /dev/null
+++ b/.changes/unreleased/Under the Hood-20240125-095453.yaml	
@@ -0,0 +1,6 @@
+kind: Under the Hood
+body: Define Macro and Group resources in dbt/artifacts
+time: 2024-01-25T09:54:53.974332-05:00
+custom:
+  Author: michelleark
+  Issue: 9381 9382
diff --git a/core/dbt/artifacts/resources/__init__.py b/core/dbt/artifacts/resources/__init__.py
index e7c97147b06..2b94afe3681 100644
--- a/core/dbt/artifacts/resources/__init__.py
+++ b/core/dbt/artifacts/resources/__init__.py
@@ -1,4 +1,8 @@
-from dbt.artifacts.resources.base import BaseArtifactNode
+from dbt.artifacts.resources.base import BaseResource
 
 # alias to latest resource definitions
 from dbt.artifacts.resources.v1.documentation import Documentation
+from dbt.artifacts.resources.v1.macro import Macro, MacroDependsOn, MacroArgument
+from dbt.artifacts.resources.v1.docs import Docs
+from dbt.artifacts.resources.v1.group import Group
+from dbt.artifacts.resources.v1.owner import Owner
diff --git a/core/dbt/artifacts/resources/base.py b/core/dbt/artifacts/resources/base.py
index 72ce677e1ce..f82f072bbcf 100644
--- a/core/dbt/artifacts/resources/base.py
+++ b/core/dbt/artifacts/resources/base.py
@@ -6,7 +6,7 @@
 
 
 @dataclass
-class BaseArtifactNode(dbtClassMixin, Replaceable):
+class BaseResource(dbtClassMixin, Replaceable):
     name: str
     resource_type: NodeType
     package_name: str
diff --git a/core/dbt/artifacts/resources/v1/docs.py b/core/dbt/artifacts/resources/v1/docs.py
new file mode 100644
index 00000000000..5dca7a88421
--- /dev/null
+++ b/core/dbt/artifacts/resources/v1/docs.py
@@ -0,0 +1,10 @@
+from dataclasses import dataclass
+from dbt_common.dataclass_schema import dbtClassMixin
+from dbt_common.contracts.util import Replaceable
+from typing import Optional
+
+
+@dataclass
+class Docs(dbtClassMixin, Replaceable):
+    show: bool = True
+    node_color: Optional[str] = None
diff --git a/core/dbt/artifacts/resources/v1/documentation.py b/core/dbt/artifacts/resources/v1/documentation.py
index b62846512d0..59c19e4ee6d 100644
--- a/core/dbt/artifacts/resources/v1/documentation.py
+++ b/core/dbt/artifacts/resources/v1/documentation.py
@@ -1,11 +1,11 @@
 from dataclasses import dataclass
 from typing import Literal
 
-from dbt.artifacts.resources.base import BaseArtifactNode
+from dbt.artifacts.resources.base import BaseResource
 from dbt.artifacts.resources.types import NodeType
 
 
 @dataclass
-class Documentation(BaseArtifactNode):
+class Documentation(BaseResource):
     resource_type: Literal[NodeType.Documentation]
     block_contents: str
diff --git a/core/dbt/artifacts/resources/v1/group.py b/core/dbt/artifacts/resources/v1/group.py
new file mode 100644
index 00000000000..c5351268eaa
--- /dev/null
+++ b/core/dbt/artifacts/resources/v1/group.py
@@ -0,0 +1,13 @@
+from dataclasses import dataclass
+from typing import Literal
+
+from dbt.artifacts.resources.base import BaseResource
+from dbt.artifacts.resources.types import NodeType
+from dbt.artifacts.resources.v1.owner import Owner
+
+
+@dataclass
+class Group(BaseResource):
+    name: str
+    owner: Owner
+    resource_type: Literal[NodeType.Group]
diff --git a/core/dbt/artifacts/resources/v1/macro.py b/core/dbt/artifacts/resources/v1/macro.py
new file mode 100644
index 00000000000..cda0fd2ac32
--- /dev/null
+++ b/core/dbt/artifacts/resources/v1/macro.py
@@ -0,0 +1,40 @@
+from dataclasses import dataclass, field
+import time
+from typing import Literal, List, Dict, Optional, Any
+
+from dbt_common.contracts.util import Replaceable
+from dbt_common.dataclass_schema import dbtClassMixin
+from dbt.artifacts.resources.base import BaseResource
+from dbt.artifacts.resources.types import NodeType, ModelLanguage
+from dbt.artifacts.resources.v1.docs import Docs
+
+
+@dataclass
+class MacroArgument(dbtClassMixin):
+    name: str
+    type: Optional[str] = None
+    description: str = ""
+
+
+@dataclass
+class MacroDependsOn(dbtClassMixin, Replaceable):
+    macros: List[str] = field(default_factory=list)
+
+    # 'in' on lists is O(n) so this is O(n^2) for # of macros
+    def add_macro(self, value: str):
+        if value not in self.macros:
+            self.macros.append(value)
+
+
+@dataclass
+class Macro(BaseResource):
+    macro_sql: str
+    resource_type: Literal[NodeType.Macro]
+    depends_on: MacroDependsOn = field(default_factory=MacroDependsOn)
+    description: str = ""
+    meta: Dict[str, Any] = field(default_factory=dict)
+    docs: Docs = field(default_factory=Docs)
+    patch_path: Optional[str] = None
+    arguments: List[MacroArgument] = field(default_factory=list)
+    created_at: float = field(default_factory=lambda: time.time())
+    supported_languages: Optional[List[ModelLanguage]] = None
diff --git a/core/dbt/artifacts/resources/v1/owner.py b/core/dbt/artifacts/resources/v1/owner.py
new file mode 100644
index 00000000000..065ad51bac2
--- /dev/null
+++ b/core/dbt/artifacts/resources/v1/owner.py
@@ -0,0 +1,11 @@
+from dataclasses import dataclass
+from typing import Optional
+
+from dbt_common.contracts.config.properties import AdditionalPropertiesAllowed
+from dbt_common.contracts.util import Replaceable
+
+
+@dataclass
+class Owner(AdditionalPropertiesAllowed, Replaceable):
+    email: Optional[str] = None
+    name: Optional[str] = None
diff --git a/core/dbt/artifacts/schemas/manifest/v12/manifest.py b/core/dbt/artifacts/schemas/manifest/v12/manifest.py
index 806f6b35e0b..d00740346e1 100644
--- a/core/dbt/artifacts/schemas/manifest/v12/manifest.py
+++ b/core/dbt/artifacts/schemas/manifest/v12/manifest.py
@@ -9,7 +9,7 @@
     get_artifact_schema_version,
 )
 from dbt.artifacts.schemas.upgrades import upgrade_manifest_json
-from dbt.artifacts.resources import Documentation
+from dbt.artifacts.resources import Documentation, Group, Macro
 
 # TODO: remove usage of dbt modules other than dbt.artifacts
 from dbt import tracking
@@ -17,8 +17,6 @@
 from dbt.contracts.graph.nodes import (
     Exposure,
     GraphMemberNode,
-    Group,
-    Macro,
     ManifestNode,
     Metric,
     SavedQuery,
diff --git a/core/dbt/contracts/graph/nodes.py b/core/dbt/contracts/graph/nodes.py
index 9b93e995cff..666affe38ed 100644
--- a/core/dbt/contracts/graph/nodes.py
+++ b/core/dbt/contracts/graph/nodes.py
@@ -27,12 +27,10 @@
 )
 from dbt.contracts.graph.unparsed import (
     ConstantPropertyInput,
-    Docs,
     ExposureType,
     ExternalTable,
     FreshnessThreshold,
     HasYamlMetadata,
-    MacroArgument,
     MaturityType,
     Owner,
     Quoting,
@@ -61,7 +59,6 @@
 from dbt_common.events.contextvars import set_log_contextvars
 from dbt.flags import get_flags
 from dbt.node_types import (
-    ModelLanguage,
     NodeType,
     AccessType,
     REFABLE_NODE_TYPES,
@@ -97,7 +94,15 @@
     SavedQueryConfig,
 )
 
-from dbt.artifacts.resources import BaseArtifactNode, Documentation as DocumentationContract
+from dbt.artifacts.resources import (
+    BaseResource,
+    Docs,
+    MacroDependsOn,
+    MacroArgument,
+    Documentation as DocumentationResource,
+    Macro as MacroResource,
+    Group as GroupResource,
+)
 
 
 # =====================================================================
@@ -124,7 +129,7 @@
 
 
 @dataclass
-class BaseNode(BaseArtifactNode):
+class BaseNode(BaseResource):
     """All nodes or node-like objects in this file should have this as a base class"""
 
     @property
@@ -240,18 +245,6 @@ def quoting_dict(self) -> Dict[str, bool]:
             return {}
 
 
-@dataclass
-class MacroDependsOn(dbtClassMixin, Replaceable):
-    """Used only in the Macro class"""
-
-    macros: List[str] = field(default_factory=list)
-
-    # 'in' on lists is O(n) so this is O(n^2) for # of macros
-    def add_macro(self, value: str):
-        if value not in self.macros:
-            self.macros.append(value)
-
-
 @dataclass
 class DeferRelation(HasRelationMetadata):
     alias: str
@@ -1149,18 +1142,7 @@ class SnapshotNode(CompiledNode):
 
 
 @dataclass
-class Macro(BaseNode):
-    macro_sql: str
-    resource_type: Literal[NodeType.Macro]
-    depends_on: MacroDependsOn = field(default_factory=MacroDependsOn)
-    description: str = ""
-    meta: Dict[str, Any] = field(default_factory=dict)
-    docs: Docs = field(default_factory=Docs)
-    patch_path: Optional[str] = None
-    arguments: List[MacroArgument] = field(default_factory=list)
-    created_at: float = field(default_factory=lambda: time.time())
-    supported_languages: Optional[List[ModelLanguage]] = None
-
+class Macro(MacroResource, BaseNode):
     def same_contents(self, other: Optional["Macro"]) -> bool:
         if other is None:
             return False
@@ -1179,7 +1161,7 @@ def depends_on_macros(self):
 
 
 @dataclass
-class Documentation(DocumentationContract, BaseNode):
+class Documentation(DocumentationResource, BaseNode):
     @property
     def search_name(self):
         return self.name
@@ -1661,10 +1643,8 @@ def same_contents(self, old: Optional["Metric"]) -> bool:
 
 
 @dataclass
-class Group(BaseNode):
-    name: str
-    owner: Owner
-    resource_type: Literal[NodeType.Group]
+class Group(GroupResource, BaseNode):
+    pass
 
 
 # ====================================
diff --git a/core/dbt/contracts/graph/unparsed.py b/core/dbt/contracts/graph/unparsed.py
index 5f355635872..8e751e71a4a 100644
--- a/core/dbt/contracts/graph/unparsed.py
+++ b/core/dbt/contracts/graph/unparsed.py
@@ -29,6 +29,7 @@
 from dbt.exceptions import ParsingError
 
 from dbt_semantic_interfaces.type_enums import ConversionCalculationType
+from dbt.artifacts.resources import Docs, MacroArgument, Owner
 
 from dataclasses import dataclass, field
 from datetime import timedelta
@@ -83,12 +84,6 @@ class UnparsedRunHook(UnparsedNode):
     index: Optional[int] = None
 
 
-@dataclass
-class Docs(dbtClassMixin, Replaceable):
-    show: bool = True
-    node_color: Optional[str] = None
-
-
 @dataclass
 class HasColumnProps(AdditionalPropertiesMixin, ExtensibleDbtClassMixin, Replaceable):
     name: str
@@ -266,13 +261,6 @@ def get_tests_for_version(self, version: NodeVersion) -> List[TestDef]:
         )
 
 
-@dataclass
-class MacroArgument(dbtClassMixin):
-    name: str
-    type: Optional[str] = None
-    description: str = ""
-
-
 @dataclass
 class UnparsedMacroUpdate(HasConfig, HasColumnProps, HasYamlMetadata):
     arguments: List[MacroArgument] = field(default_factory=list)
@@ -534,12 +522,6 @@ class MaturityType(StrEnum):
     High = "high"
 
 
-@dataclass
-class Owner(AdditionalPropertiesAllowed, Replaceable):
-    email: Optional[str] = None
-    name: Optional[str] = None
-
-
 @dataclass
 class UnparsedExposure(dbtClassMixin, Replaceable):
     name: str
diff --git a/core/dbt/graph/selector_methods.py b/core/dbt/graph/selector_methods.py
index 6d478356cc0..e9a627b55b2 100644
--- a/core/dbt/graph/selector_methods.py
+++ b/core/dbt/graph/selector_methods.py
@@ -593,7 +593,7 @@ def _macros_modified(self) -> List[str]:
             else:
                 modified.append(uid)
 
-        for uid, macro in old_macros.items():
+        for uid, _ in old_macros.items():
             if uid not in new_macros:
                 modified.append(uid)