diff --git a/lib/graphql_schema.rb b/lib/graphql_schema.rb
index b6f9cd3..01f221a 100644
--- a/lib/graphql_schema.rb
+++ b/lib/graphql_schema.rb
@@ -24,6 +24,10 @@ def types
     @types ||= @hash.fetch('types').map{ |type_hash| TypeDefinition.new(type_hash) }.sort_by(&:name)
   end
 
+  def types_by_name
+    @types_by_name ||= types.map { |type| [type.name, type] }.to_h
+  end
+
   module NamedHash
     def name
       @hash.fetch('name')
diff --git a/test/graphql_schema_test.rb b/test/graphql_schema_test.rb
index 6f5ea6e..18bea7d 100644
--- a/test/graphql_schema_test.rb
+++ b/test/graphql_schema_test.rb
@@ -134,6 +134,11 @@ def test_fields_by_name
     assert_equal nil, type('QueryRoot').fields_by_name['does_not_exist']
   end
 
+  def test_type_by_name
+    assert_equal type('SetIntegerInput'), @schema.types_by_name['SetIntegerInput']
+    assert_equal nil, @schema.types_by_name['IDoNotExist']
+  end
+
   def test_description
     assert_equal 'Time since epoch in seconds', type('Time').description
     assert_nil type('StringEntry').description