diff --git a/app/models/clusters/providers/gcp.rb b/app/models/clusters/providers/gcp.rb
index c4391729dd7..ee2e43ee9dd 100644
--- a/app/models/clusters/providers/gcp.rb
+++ b/app/models/clusters/providers/gcp.rb
@@ -7,7 +7,7 @@ module Clusters
 
       default_value_for :zone, 'us-central1-a'
       default_value_for :num_nodes, 3
-      default_value_for :machine_type, 'n1-standard-4'
+      default_value_for :machine_type, 'n1-standard-2'
 
       attr_encrypted :access_token,
         mode: :per_attribute_iv,
diff --git a/app/views/projects/clusters/_form.html.haml b/app/views/projects/clusters/_form.html.haml
index d8e5b55bb88..1f8ae463d0f 100644
--- a/app/views/projects/clusters/_form.html.haml
+++ b/app/views/projects/clusters/_form.html.haml
@@ -29,7 +29,7 @@
           .form-group
             = provider_gcp_field.label :machine_type, s_('ClusterIntegration|Machine type')
             = link_to(s_('ClusterIntegration|See machine types'), 'https://cloud.google.com/compute/docs/machine-types', target: '_blank', rel: 'noopener noreferrer')
-            = provider_gcp_field.text_field :machine_type, class: 'form-control', placeholder: 'n1-standard-4'
+            = provider_gcp_field.text_field :machine_type, class: 'form-control', placeholder: 'n1-standard-2'
 
         .form-group
           = field.submit s_('ClusterIntegration|Create cluster'), class: 'btn btn-save'
diff --git a/changelogs/unreleased/39649-change-default-size-for-gke-cluster-creation.yml b/changelogs/unreleased/39649-change-default-size-for-gke-cluster-creation.yml
new file mode 100644
index 00000000000..6faa30177ad
--- /dev/null
+++ b/changelogs/unreleased/39649-change-default-size-for-gke-cluster-creation.yml
@@ -0,0 +1,5 @@
+---
+title: Change default cluster size to n1-default-2
+merge_request: 39649
+author: Fabio Busatto
+type: changed
diff --git a/spec/lib/google_api/cloud_platform/client_spec.rb b/spec/lib/google_api/cloud_platform/client_spec.rb
index acc5bd1da35..fac23dce44d 100644
--- a/spec/lib/google_api/cloud_platform/client_spec.rb
+++ b/spec/lib/google_api/cloud_platform/client_spec.rb
@@ -69,7 +69,7 @@ describe GoogleApi::CloudPlatform::Client do
 
     let(:cluster_name) { 'test-cluster' }
     let(:cluster_size) { 1 }
-    let(:machine_type) { 'n1-standard-4' }
+    let(:machine_type) { 'n1-standard-2' }
     let(:operation) { double }
 
     before do
diff --git a/spec/models/clusters/providers/gcp_spec.rb b/spec/models/clusters/providers/gcp_spec.rb
index ecd0a08c953..b38b5e6bcad 100644
--- a/spec/models/clusters/providers/gcp_spec.rb
+++ b/spec/models/clusters/providers/gcp_spec.rb
@@ -10,7 +10,7 @@ describe Clusters::Providers::Gcp do
     it "has default value" do
       expect(gcp.zone).to eq('us-central1-a')
       expect(gcp.num_nodes).to eq(3)
-      expect(gcp.machine_type).to eq('n1-standard-4')
+      expect(gcp.machine_type).to eq('n1-standard-2')
     end
   end