diff --git a/awx/api/serializers.py b/awx/api/serializers.py
index 531c6a869b..b7e5e1a62c 100644
--- a/awx/api/serializers.py
+++ b/awx/api/serializers.py
@@ -3599,7 +3599,7 @@ class WorkflowJobTemplateSerializer(JobTemplateMixin, LabelsListMixin, UnifiedJo
     class Meta:
         model = WorkflowJobTemplate
         fields = ('*', 'extra_vars', 'organization', 'survey_enabled', 'allow_simultaneous',
-                  'ask_variables_on_launch',)
+                  'ask_variables_on_launch', 'inventory', 'ask_inventory_on_launch',)
 
     def get_related(self, obj):
         res = super(WorkflowJobTemplateSerializer, self).get_related(obj)
@@ -3643,7 +3643,8 @@ class WorkflowJobSerializer(LabelsListMixin, UnifiedJobSerializer):
         model = WorkflowJob
         fields = ('*', 'workflow_job_template', 'extra_vars', 'allow_simultaneous',
                   'job_template', 'is_sliced_job',
-                  '-execution_node', '-event_processing_finished', '-controller_node',)
+                  '-execution_node', '-event_processing_finished', '-controller_node',
+                  'inventory',)
 
     def get_related(self, obj):
         res = super(WorkflowJobSerializer, self).get_related(obj)
diff --git a/awx/main/migrations/0050_v340_workflow_inventory.py b/awx/main/migrations/0050_v340_workflow_inventory.py
new file mode 100644
index 0000000000..9d5e6a2cd5
--- /dev/null
+++ b/awx/main/migrations/0050_v340_workflow_inventory.py
@@ -0,0 +1,32 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.11 on 2018-09-27 18:47
+from __future__ import unicode_literals
+
+import awx.main.fields
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('main', '0049_v330_validate_instance_capacity_adjustment'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='workflowjob',
+            name='inventory',
+            field=models.ForeignKey(blank=True, default=None, help_text='Inventory applied to all job templates in workflow that prompt for inventory.', null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='workflowjobs', to='main.Inventory'),
+        ),
+        migrations.AddField(
+            model_name='workflowjobtemplate',
+            name='ask_inventory_on_launch',
+            field=awx.main.fields.AskForField(default=False),
+        ),
+        migrations.AddField(
+            model_name='workflowjobtemplate',
+            name='inventory',
+            field=models.ForeignKey(blank=True, default=None, help_text='Inventory applied to all job templates in workflow that prompt for inventory.', null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='workflowjobtemplates', to='main.Inventory'),
+        ),
+    ]
diff --git a/awx/main/models/jobs.py b/awx/main/models/jobs.py
index ae4e6f431b..e774469216 100644
--- a/awx/main/models/jobs.py
+++ b/awx/main/models/jobs.py
@@ -34,7 +34,7 @@ from awx.main.models.notifications import (
     JobNotificationMixin,
 )
 from awx.main.utils import parse_yaml_or_json, getattr_dne
-from awx.main.fields import ImplicitRoleField
+from awx.main.fields import ImplicitRoleField, JSONField, AskForField
 from awx.main.models.mixins import (
     ResourceMixin,
     SurveyJobTemplateMixin,
@@ -43,7 +43,6 @@ from awx.main.models.mixins import (
     CustomVirtualEnvMixin,
     RelatedJobsMixin,
 )
-from awx.main.fields import JSONField, AskForField
 
 
 logger = logging.getLogger('awx.main.models.jobs')
diff --git a/awx/main/models/workflow.py b/awx/main/models/workflow.py
index 1f1d776bd4..70a736e07d 100644
--- a/awx/main/models/workflow.py
+++ b/awx/main/models/workflow.py
@@ -24,7 +24,7 @@ from awx.main.models.rbac import (
     ROLE_SINGLETON_SYSTEM_ADMINISTRATOR,
     ROLE_SINGLETON_SYSTEM_AUDITOR
 )
-from awx.main.fields import ImplicitRoleField
+from awx.main.fields import ImplicitRoleField, AskForField
 from awx.main.models.mixins import (
     ResourceMixin,
     SurveyJobTemplateMixin,
@@ -280,6 +280,15 @@ class WorkflowJobOptions(BaseModel):
     allow_simultaneous = models.BooleanField(
         default=False
     )
+    inventory = models.ForeignKey(
+        'Inventory',
+        related_name='%(class)ss',
+        blank=True,
+        null=True,
+        default=None,
+        on_delete=models.SET_NULL,
+        help_text=_('Inventory applied to all job templates in workflow that prompt for inventory.'),
+    )
 
     extra_vars_dict = VarsDictProperty('extra_vars', True)
 
@@ -342,6 +351,10 @@ class WorkflowJobTemplate(UnifiedJobTemplate, WorkflowJobOptions, SurveyJobTempl
         on_delete=models.SET_NULL,
         related_name='workflows',
     )
+    ask_inventory_on_launch = AskForField(
+        blank=True,
+        default=False,
+    )
     admin_role = ImplicitRoleField(parent_role=[
         'singleton:' + ROLE_SINGLETON_SYSTEM_ADMINISTRATOR,
         'organization.workflow_admin_role'