diff --git a/dojo/api_v2/serializers.py b/dojo/api_v2/serializers.py
index 45d2707a6e0..2d126115080 100644
--- a/dojo/api_v2/serializers.py
+++ b/dojo/api_v2/serializers.py
@@ -1133,6 +1133,14 @@ class Meta:
         model = Tool_Type
         fields = "__all__"
 
+    def validate(self, data):
+        if self.context["request"].method == "POST":
+            name = data.get("name")
+            # Make sure this will not create a duplicate test type
+            if Tool_Type.objects.filter(name=name).count() > 0:
+                raise serializers.ValidationError('A Tool Type with the name already exists')
+        return data
+
 
 class RegulationSerializer(serializers.ModelSerializer):
     class Meta:
diff --git a/dojo/forms.py b/dojo/forms.py
index 558c09ae69d..27a1fb0c287 100755
--- a/dojo/forms.py
+++ b/dojo/forms.py
@@ -2388,6 +2388,23 @@ class Meta:
         model = Tool_Type
         exclude = ['product']
 
+    def __init__(self, *args, **kwargs):
+        instance = kwargs.get('instance', None)
+        self.newly_created = True
+        if instance is not None:
+            self.newly_created = instance.pk is None
+        super().__init__(*args, **kwargs)
+
+    def clean(self):
+        form_data = self.cleaned_data
+        if self.newly_created:
+            name = form_data.get("name")
+            # Make sure this will not create a duplicate test type
+            if Tool_Type.objects.filter(name=name).count() > 0:
+                raise forms.ValidationError('A Tool Type with the name already exists')
+
+        return form_data
+
 
 class RegulationForm(forms.ModelForm):
     class Meta:
diff --git a/unittests/test_swagger_schema.py b/unittests/test_swagger_schema.py
index 9f1316b4d2e..b1263359374 100644
--- a/unittests/test_swagger_schema.py
+++ b/unittests/test_swagger_schema.py
@@ -785,6 +785,9 @@ def __init__(self, *args, **kwargs):
         self.viewset = ToolTypesViewSet
         self.model = Tool_Type
         self.serializer = ToolTypeSerializer
+        self.field_transformers = {
+            "name": lambda v: v + "_new"
+        }
 
 
 class UserTest(BaseClass.SchemaTest):