diff --git a/IMPLEMENTATION_COVERAGE.md b/IMPLEMENTATION_COVERAGE.md
index 7b4bc5e4d..84c574bc3 100644
--- a/IMPLEMENTATION_COVERAGE.md
+++ b/IMPLEMENTATION_COVERAGE.md
@@ -3147,7 +3147,7 @@
 - [ ] update_server
 - [ ] update_server_engine_attributes
 
-## organizations - 19% implemented
+## organizations - 20% implemented
 - [ ] accept_handshake
 - [ ] attach_policy
 - [ ] cancel_handshake
@@ -3180,8 +3180,8 @@
 - [ ] list_create_account_status
 - [ ] list_handshakes_for_account
 - [ ] list_handshakes_for_organization
-- [ ] list_organizational_units_for_parent
-- [ ] list_parents
+- [X] list_organizational_units_for_parent
+- [X] list_parents
 - [ ] list_policies
 - [ ] list_policies_for_target
 - [X] list_roots
diff --git a/moto/organizations/models.py b/moto/organizations/models.py
index 461072ce3..b46c62798 100644
--- a/moto/organizations/models.py
+++ b/moto/organizations/models.py
@@ -14,6 +14,7 @@ ACCOUNT_ARN_FORMAT = 'arn:aws:organizations::{0}:account/{1}/{2}'
 ROOT_ARN_FORMAT = 'arn:aws:organizations::{0}:root/{1}/{2}'
 OU_ARN_FORMAT = 'arn:aws:organizations::{0}:ou/{1}/{2}'
 
+
 class FakeOrganization(BaseModel):
 
     def __init__(self, feature_set):
@@ -125,7 +126,6 @@ class FakeRoot(BaseModel):
         }
 
 
-
 class FakeOrganizationalUnit(BaseModel):
 
     def __init__(self, organization, root_id, **kwargs):
@@ -152,6 +152,7 @@ class FakeOrganizationalUnit(BaseModel):
             }
         }
 
+
 class OrganizationsBackend(BaseBackend):
 
     def __init__(self):
@@ -184,6 +185,35 @@ class OrganizationsBackend(BaseBackend):
         ].pop(0)
         return ou.describe()
 
+    def list_organizational_units_for_parent(self, **kwargs):
+        return dict(
+            OrganizationalUnits=[
+                {
+                    'Id': ou.id,
+                    'Arn': ou.arn,
+                    'Name': ou.name,
+                }
+                for ou in self.ou
+                if ou.parent_id == kwargs['ParentId']
+            ]
+        )
+
+    def list_parents(self, **kwargs):
+        parent_id = [
+            ou.parent_id for ou in self.ou if ou.id == kwargs['ChildId']
+        ].pop(0)
+        root_parents = [
+            dict(Id=root.id, Type='ROOT')
+            for root in self.roots
+            if root.id == parent_id
+        ]
+        ou_parents = [
+            dict(Id=ou.id, Type='ORGANIZATIONAL_UNIT')
+            for ou in self.ou
+            if ou.id == parent_id
+        ]
+        return dict(Parents=root_parents + ou_parents)
+
     def create_account(self, **kwargs):
         new_account = FakeAccount(self.org, **kwargs)
         self.accounts.append(new_account)
diff --git a/moto/organizations/responses.py b/moto/organizations/responses.py
index 4f0643cf6..9fdb73317 100644
--- a/moto/organizations/responses.py
+++ b/moto/organizations/responses.py
@@ -46,6 +46,16 @@ class OrganizationsResponse(BaseResponse):
             self.organizations_backend.describe_organizational_unit(**self.request_params)
         )
 
+    def list_organizational_units_for_parent(self):
+        return json.dumps(
+            self.organizations_backend.list_organizational_units_for_parent(**self.request_params)
+        )
+
+    def list_parents(self):
+        return json.dumps(
+            self.organizations_backend.list_parents(**self.request_params)
+        )
+
     def create_account(self):
         return json.dumps(
             self.organizations_backend.create_account(**self.request_params)
diff --git a/tests/test_organizations/test_organizations_boto3.py b/tests/test_organizations/test_organizations_boto3.py
index 0e398bd43..8375ffbe3 100644
--- a/tests/test_organizations/test_organizations_boto3.py
+++ b/tests/test_organizations/test_organizations_boto3.py
@@ -55,7 +55,7 @@ def validate_organization(response):
     }])
 
 
-def validate_organizationa_unit(org, response):
+def validate_organizational_unit(org, response):
     response.should.have.key('OrganizationalUnit').should.be.a(dict)
     ou = response['OrganizationalUnit']
     ou.should.have.key('Id').should.match(OU_ID_REGEX)
@@ -64,7 +64,7 @@ def validate_organizationa_unit(org, response):
         org['Id'],
         ou['Id'],
     ))
-    ou.should.have.key('Name').should.equal(ou_name)
+    ou.should.have.key('Name').should.be.a(str)
 
 
 def validate_account(org, account):
@@ -128,7 +128,6 @@ def test_describe_organization():
 
 
 # Organizational Units
-ou_name = 'ou01'
 
 @mock_organizations
 def test_list_roots():
@@ -157,12 +156,14 @@ def test_create_organizational_unit():
     client = boto3.client('organizations', region_name='us-east-1')
     org = client.create_organization(FeatureSet='ALL')['Organization']
     root_id = client.list_roots()['Roots'][0]['Id']
+    ou_name = 'ou01'
     response = client.create_organizational_unit(
         ParentId=root_id,
         Name=ou_name,
     )
     #print(yaml.dump(response, default_flow_style=False))
-    validate_organizationa_unit(org, response)
+    validate_organizational_unit(org, response)
+    response['OrganizationalUnit']['Name'].should.equal(ou_name)
     #assert False
 
 
@@ -173,13 +174,51 @@ def test_describe_organizational_unit():
     root_id = client.list_roots()['Roots'][0]['Id']
     ou_id = client.create_organizational_unit(
         ParentId=root_id,
-        Name=ou_name,
+        Name='ou01',
     )['OrganizationalUnit']['Id']
-    response = client.describe_organizational_unit(
-        OrganizationalUnitId=ou_id,
-    )
+    response = client.describe_organizational_unit(OrganizationalUnitId=ou_id)
     print(yaml.dump(response, default_flow_style=False))
-    validate_organizationa_unit(org, response)
+    validate_organizational_unit(org, response)
+    #assert False
+
+
+@mock_organizations
+def test_list_organizational_units_for_parent():
+    client = boto3.client('organizations', region_name='us-east-1')
+    org = client.create_organization(FeatureSet='ALL')['Organization']
+    root_id = client.list_roots()['Roots'][0]['Id']
+    client.create_organizational_unit(ParentId=root_id, Name='ou01')
+    client.create_organizational_unit(ParentId=root_id, Name='ou02')
+    client.create_organizational_unit(ParentId=root_id, Name='ou03')
+    response = client.list_organizational_units_for_parent(ParentId=root_id)
+    print(yaml.dump(response, default_flow_style=False))
+    response.should.have.key('OrganizationalUnits').should.be.a(list)
+    for ou in response['OrganizationalUnits']:
+        validate_organizational_unit(org, dict(OrganizationalUnit=ou))
+    #assert False
+
+
+@mock_organizations
+def test_list_parents():
+    client = boto3.client('organizations', region_name='us-east-1')
+    org = client.create_organization(FeatureSet='ALL')['Organization']
+    root_id = client.list_roots()['Roots'][0]['Id']
+
+    ou01 = client.create_organizational_unit(ParentId=root_id, Name='ou01')
+    ou01_id = ou01['OrganizationalUnit']['Id']
+    response01 = client.list_parents(ChildId=ou01_id)
+    #print(yaml.dump(response01, default_flow_style=False))
+    response01.should.have.key('Parents').should.be.a(list)
+    response01['Parents'][0].should.have.key('Id').should.equal(root_id)
+    response01['Parents'][0].should.have.key('Type').should.equal('ROOT')
+
+    ou02 = client.create_organizational_unit(ParentId=ou01_id, Name='ou02')
+    ou02_id = ou02['OrganizationalUnit']['Id']
+    response02 = client.list_parents(ChildId=ou02_id)
+    #print(yaml.dump(response02, default_flow_style=False))
+    response02.should.have.key('Parents').should.be.a(list)
+    response02['Parents'][0].should.have.key('Id').should.equal(ou01_id)
+    response02['Parents'][0].should.have.key('Type').should.equal('ORGANIZATIONAL_UNIT')
     #assert False