diff --git a/.rubocop_todo/gitlab/namespaced_class.yml b/.rubocop_todo/gitlab/namespaced_class.yml
index 925b5188c8b98a128c933935baa702650922d199..3a81130a47c6a3bd9985a78f5830f0f1e76f46a6 100644
--- a/.rubocop_todo/gitlab/namespaced_class.yml
+++ b/.rubocop_todo/gitlab/namespaced_class.yml
@@ -244,6 +244,7 @@ Gitlab/NamespacedClass:
     - 'app/models/notification_setting.rb'
     - 'app/models/oauth_access_grant.rb'
     - 'app/models/oauth_access_token.rb'
+    - 'app/models/organization.rb'
     - 'app/models/out_of_context_discussion.rb'
     - 'app/models/pages_deployment.rb'
     - 'app/models/pages_domain.rb'
diff --git a/app/models/organization.rb b/app/models/organization.rb
index 73a7e84305fd57de06d971980de302d85da0f6ce..cfbbbf1183ef57e94d0f55f7fe21ebf1cb93f753 100644
--- a/app/models/organization.rb
+++ b/app/models/organization.rb
@@ -1,6 +1,26 @@
 # frozen_string_literal: true
 
-# rubocop: disable Gitlab/NamespacedClass
 class Organization < ApplicationRecord
+  DEFAULT_ORGANIZATION_ID = 1
+
+  scope :without_default, -> { where.not(id: DEFAULT_ORGANIZATION_ID) }
+
+  before_destroy :check_if_default_organization
+
+  validates :name,
+    presence: true,
+    length: { maximum: 255 },
+    uniqueness: { case_sensitive: false }
+
+  def default?
+    id == DEFAULT_ORGANIZATION_ID
+  end
+
+  private
+
+  def check_if_default_organization
+    return unless default?
+
+    raise ActiveRecord::RecordNotDestroyed, _('Cannot delete the default organization')
+  end
 end
-# rubocop: enable Gitlab/NamespacedClass
diff --git a/db/migrate/20230509085428_change_organizations_sequence.rb b/db/migrate/20230509085428_change_organizations_sequence.rb
new file mode 100644
index 0000000000000000000000000000000000000000..59ec8c6e1ea78df0d6e2893eaa4f99d19efd19fb
--- /dev/null
+++ b/db/migrate/20230509085428_change_organizations_sequence.rb
@@ -0,0 +1,12 @@
+# frozen_string_literal: true
+
+class ChangeOrganizationsSequence < Gitlab::Database::Migration[2.1]
+  def up
+    # Modify sequence for organizations.id so id '1' is never automatically taken
+    execute "ALTER SEQUENCE organizations_id_seq START WITH 1000 MINVALUE 1000 RESTART"
+  end
+
+  def down
+    execute "ALTER SEQUENCE organizations_id_seq START WITH 1 MINVALUE 1"
+  end
+end
diff --git a/db/migrate/20230509115525_add_name_to_organization.rb b/db/migrate/20230509115525_add_name_to_organization.rb
new file mode 100644
index 0000000000000000000000000000000000000000..d77fa84a70c9f0e75a8bc16fa9191a7a4f6f1c7f
--- /dev/null
+++ b/db/migrate/20230509115525_add_name_to_organization.rb
@@ -0,0 +1,20 @@
+# frozen_string_literal: true
+
+# rubocop:disable Migration/AddLimitToTextColumns, Migration/AddIndex
+# limit is added in 20230515111314_add_text_limit_on_organization_name.rb
+class AddNameToOrganization < Gitlab::Database::Migration[2.1]
+  disable_ddl_transaction!
+
+  INDEX_NAME = 'unique_organizations_on_name_lower'
+
+  def up
+    add_column :organizations, :name, :text, null: false, default: ''
+
+    add_index :organizations, 'lower(name)', name: INDEX_NAME, unique: true
+  end
+
+  def down
+    remove_column :organizations, :name, if_exists: true
+  end
+end
+# rubocop:enable Migration/AddLimitToTextColumns, Migration/AddIndex
diff --git a/db/migrate/20230509131736_add_default_organization.rb b/db/migrate/20230509131736_add_default_organization.rb
new file mode 100644
index 0000000000000000000000000000000000000000..a63e7171f539881efb6db3deb4bfceabe9bf33c7
--- /dev/null
+++ b/db/migrate/20230509131736_add_default_organization.rb
@@ -0,0 +1,16 @@
+# frozen_string_literal: true
+
+class AddDefaultOrganization < Gitlab::Database::Migration[2.1]
+  restrict_gitlab_migration gitlab_schema: :gitlab_main
+
+  class Organization < MigrationRecord
+  end
+
+  def up
+    Organization.create(id: 1, name: 'Default')
+  end
+
+  def down
+    Organization.where(id: 1).delete_all
+  end
+end
diff --git a/db/migrate/20230515111314_add_text_limit_on_organization_name.rb b/db/migrate/20230515111314_add_text_limit_on_organization_name.rb
new file mode 100644
index 0000000000000000000000000000000000000000..c0b687fab94c4c026da6a011a25455ab6d71d849
--- /dev/null
+++ b/db/migrate/20230515111314_add_text_limit_on_organization_name.rb
@@ -0,0 +1,13 @@
+# frozen_string_literal: true
+
+class AddTextLimitOnOrganizationName < Gitlab::Database::Migration[2.1]
+  disable_ddl_transaction!
+
+  def up
+    add_text_limit :organizations, :name, 255
+  end
+
+  def down
+    remove_text_limit :organizations, :name
+  end
+end
diff --git a/db/schema_migrations/20230509085428 b/db/schema_migrations/20230509085428
new file mode 100644
index 0000000000000000000000000000000000000000..cf7214ceadcb6a0b83e0aa0e71e93e62cd2262c3
--- /dev/null
+++ b/db/schema_migrations/20230509085428
@@ -0,0 +1 @@
+6179fe3d8c419c58e028fc1fe5d554678976229eff88f087beec174cb669d4ce
\ No newline at end of file
diff --git a/db/schema_migrations/20230509115525 b/db/schema_migrations/20230509115525
new file mode 100644
index 0000000000000000000000000000000000000000..e3c0ada40cd03795354406fc619df81093f34f6f
--- /dev/null
+++ b/db/schema_migrations/20230509115525
@@ -0,0 +1 @@
+92b70129d19796653569fb730be43ea6eed7dacbce224e1323124fdf03b0a0b0
\ No newline at end of file
diff --git a/db/schema_migrations/20230509131736 b/db/schema_migrations/20230509131736
new file mode 100644
index 0000000000000000000000000000000000000000..593c9495eb237cc11e4ce1a0c102dafb8e008249
--- /dev/null
+++ b/db/schema_migrations/20230509131736
@@ -0,0 +1 @@
+f9545a27756e5ca05220ffebcf89e8268e0231cbd8c7af0a89d13c70f5a070ec
\ No newline at end of file
diff --git a/db/schema_migrations/20230515111314 b/db/schema_migrations/20230515111314
new file mode 100644
index 0000000000000000000000000000000000000000..d2d7d2c94c4aaac9c1b14fe2be5fede20f0334d3
--- /dev/null
+++ b/db/schema_migrations/20230515111314
@@ -0,0 +1 @@
+2a011d12459e0c21832df777569a12f4f2bbdaa5f57da7dc3823147f948d7772
\ No newline at end of file
diff --git a/db/structure.sql b/db/structure.sql
index 75087462e3a52ac294090df2ab03803ffbc82fa5..8ba5cedf74047d6b61908811d4017315642c41e1 100644
--- a/db/structure.sql
+++ b/db/structure.sql
@@ -19179,13 +19179,15 @@ ALTER SEQUENCE operations_user_lists_id_seq OWNED BY operations_user_lists.id;
 CREATE TABLE organizations (
     id bigint NOT NULL,
     created_at timestamp with time zone NOT NULL,
-    updated_at timestamp with time zone NOT NULL
+    updated_at timestamp with time zone NOT NULL,
+    name text DEFAULT ''::text NOT NULL,
+    CONSTRAINT check_d130d769e0 CHECK ((char_length(name) <= 255))
 );
 
 CREATE SEQUENCE organizations_id_seq
-    START WITH 1
+    START WITH 1000
     INCREMENT BY 1
-    NO MINVALUE
+    MINVALUE 1000
     NO MAXVALUE
     CACHE 1;
 
@@ -33170,6 +33172,8 @@ CREATE UNIQUE INDEX unique_index_on_system_note_metadata_id ON resource_link_eve
 
 CREATE UNIQUE INDEX unique_merge_request_metrics_by_merge_request_id ON merge_request_metrics USING btree (merge_request_id);
 
+CREATE UNIQUE INDEX unique_organizations_on_name_lower ON organizations USING btree (lower(name));
+
 CREATE UNIQUE INDEX unique_packages_project_id_and_name_and_version_when_debian ON packages_packages USING btree (project_id, name, version) WHERE ((package_type = 9) AND (status <> 4));
 
 CREATE UNIQUE INDEX unique_postgres_async_fk_validations_name_and_table_name ON postgres_async_foreign_key_validations USING btree (name, table_name);
diff --git a/locale/gitlab.pot b/locale/gitlab.pot
index 99ac0af463ec9e8fab0ca6adcf6a286982ae998e..01e661c41e6f2ab0534577bc83438211100349a0 100644
--- a/locale/gitlab.pot
+++ b/locale/gitlab.pot
@@ -8745,6 +8745,9 @@ msgstr ""
 msgid "Cannot delete the default framework"
 msgstr ""
 
+msgid "Cannot delete the default organization"
+msgstr ""
+
 msgid "Cannot have multiple Jira imports running at the same time"
 msgstr ""
 
diff --git a/spec/factories/organizations.rb b/spec/factories/organizations.rb
index a6684a8f95f7653074482f9ea26ee363ff1c4eab..7ff0493d140b293b0e35f62accbc43201c30ee42 100644
--- a/spec/factories/organizations.rb
+++ b/spec/factories/organizations.rb
@@ -1,5 +1,16 @@
 # frozen_string_literal: true
 
 FactoryBot.define do
-  factory :organization
+  factory :organization do
+    sequence(:name) { |n| "Organization ##{n}" }
+
+    trait :default do
+      id { Organization::DEFAULT_ORGANIZATION_ID }
+      name { 'Default' }
+      initialize_with do
+        # Ensure we only use one default organization
+        Organization.find_by(id: Organization::DEFAULT_ORGANIZATION_ID) || new(**attributes)
+      end
+    end
+  end
 end
diff --git a/spec/migrations/20230509131736_add_default_organization_spec.rb b/spec/migrations/20230509131736_add_default_organization_spec.rb
new file mode 100644
index 0000000000000000000000000000000000000000..539216c57eed8bd09018034c9ff9faf996e7c77a
--- /dev/null
+++ b/spec/migrations/20230509131736_add_default_organization_spec.rb
@@ -0,0 +1,20 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+require_migration!
+
+RSpec.describe AddDefaultOrganization, feature_category: :cell do
+  let(:organization) { table(:organizations) }
+
+  it "correctly migrates up and down" do
+    reversible_migration do |migration|
+      migration.before -> {
+        expect(organization.where(id: 1, name: 'Default')).to be_empty
+      }
+      migration.after -> {
+        expect(organization.where(id: 1, name: 'Default')).not_to be_empty
+      }
+    end
+  end
+end
diff --git a/spec/models/organization_spec.rb b/spec/models/organization_spec.rb
index 9966a7132cebf4d32d5480c173176c11ab9e8927..e1aac88e6408cab8e5acde182374a7f6a6fcf203 100644
--- a/spec/models/organization_spec.rb
+++ b/spec/models/organization_spec.rb
@@ -2,9 +2,97 @@
 
 require 'spec_helper'
 
-# rubocop: disable Lint/EmptyBlock
-# rubocop: disable RSpec/EmptyExampleGroup
 RSpec.describe Organization, type: :model, feature_category: :cell do
+  let_it_be(:organization) { create(:organization) }
+  let_it_be(:default_organization) { create(:organization, :default) }
+
+  describe 'validations' do
+    subject { create(:organization) }
+
+    it { is_expected.to validate_presence_of(:name) }
+    it { is_expected.to validate_uniqueness_of(:name).case_insensitive }
+    it { is_expected.to validate_length_of(:name).is_at_most(255) }
+  end
+
+  context 'when using scopes' do
+    describe '.without_default' do
+      it 'excludes default organization' do
+        expect(described_class.without_default).not_to include(default_organization)
+      end
+
+      it 'includes other organizations organization' do
+        expect(described_class.without_default).to include(organization)
+      end
+    end
+  end
+
+  describe '#id' do
+    context 'when organization is default' do
+      it 'has id 1' do
+        expect(default_organization.id).to eq(1)
+      end
+    end
+
+    context 'when organization is not default' do
+      it 'does not have id 1' do
+        expect(organization.id).not_to eq(1)
+      end
+    end
+  end
+
+  describe '#destroy!' do
+    context 'when trying to delete the default organization' do
+      it 'raises an error' do
+        expect do
+          default_organization.destroy!
+        end.to raise_error(ActiveRecord::RecordNotDestroyed, _('Cannot delete the default organization'))
+      end
+    end
+
+    context 'when trying to delete a non-default organization' do
+      let(:to_be_removed) { create(:organization) }
+
+      it 'does not raise error' do
+        expect { to_be_removed.destroy! }.not_to raise_error
+      end
+    end
+  end
+
+  describe '#destroy' do
+    context 'when trying to delete the default organization' do
+      it 'returns false' do
+        expect(default_organization.destroy).to eq(false)
+      end
+    end
+
+    context 'when trying to delete a non-default organization' do
+      let(:to_be_removed) { create(:organization) }
+
+      it 'returns true' do
+        expect(to_be_removed.destroy).to eq(to_be_removed)
+      end
+    end
+  end
+
+  describe '#default?' do
+    context 'when organization is default' do
+      it 'returns true' do
+        expect(default_organization.default?).to eq(true)
+      end
+    end
+
+    context 'when organization is not default' do
+      it 'returns false' do
+        expect(organization.default?).to eq(false)
+      end
+    end
+  end
+
+  describe '#name' do
+    context 'when organization is default' do
+      it 'returns Default' do
+        expect(default_organization.name).to eq('Default')
+      end
+    end
+  end
 end
-# rubocop: enable RSpec/EmptyExampleGroup
-# rubocop: enable Lint/EmptyBlock
diff --git a/spec/support/helpers/test_env.rb b/spec/support/helpers/test_env.rb
index a53e1e1002c744da2ee6b7f0896e14f7a8256aa7..ceb567e54c433742e10bbc087fdd3312c8c9ce1e 100644
--- a/spec/support/helpers/test_env.rb
+++ b/spec/support/helpers/test_env.rb
@@ -372,6 +372,7 @@ def forked_repo_bundle_path
   def seed_db
     Gitlab::DatabaseImporters::WorkItems::BaseTypeImporter.upsert_types
     Gitlab::DatabaseImporters::WorkItems::HierarchyRestrictionsImporter.upsert_restrictions
+    FactoryBot.create(:organization, :default)
   end
 
   private