diff --git a/frontend/src/app/shared/components/autocompleter/project-autocompleter/project-autocompleter.component.ts b/frontend/src/app/shared/components/autocompleter/project-autocompleter/project-autocompleter.component.ts
index 8d4676f64bae..298b5c394b07 100644
--- a/frontend/src/app/shared/components/autocompleter/project-autocompleter/project-autocompleter.component.ts
+++ b/frontend/src/app/shared/components/autocompleter/project-autocompleter/project-autocompleter.component.ts
@@ -90,6 +90,8 @@ export class ProjectAutocompleterComponent extends OpAutocompleterComponent<IPro
 
   @Input() public isInlineContext = false;
 
+  @Input() public disabledProjects:{ [key:string]:string|boolean } = {};
+
   // This function allows mapping of the results before they are fed to the tree
   // structuring and destructuring algorithms used internally the this component
   // to show the tree structure. By default it does not do much, but it is
@@ -140,9 +142,12 @@ export class ProjectAutocompleterComponent extends OpAutocompleterComponent<IPro
     const arrayedValue = (Array.isArray(normalizedValue) ? normalizedValue : [normalizedValue]).map((p) => p.href || p.id);
     return projects.map((project) => {
       const isSelected = !!arrayedValue.find((selected) => selected === this.projectTracker(project));
+      const id = project.id.toString();
+      const disabled = isSelected || project.disabled || !!this.disabledProjects[id];
       return {
         ...project,
-        disabled: isSelected || project.disabled,
+        disabled,
+        disabledReason: (typeof this.disabledProjects[id] === 'string') ? this.disabledProjects[id] as string : '',
       };
     });
   }
@@ -176,14 +181,20 @@ export class ProjectAutocompleterComponent extends OpAutocompleterComponent<IPro
       },
     )
       .pipe(
-        map((projects) => projects.map((project) => ({
-          id: project.id,
-          href: project._links.self.href,
-          name: project.name,
-          disabled: false,
-          ancestors: project._links.ancestors,
-          children: [],
-        }))),
+        map((projects) => projects.map((project) => {
+          const id = project.id.toString();
+          const disabled = !!this.disabledProjects[id];
+
+          return {
+            id: project.id,
+            href: project._links.self.href,
+            name: project.name,
+            disabled,
+            disabledReason: (typeof this.disabledProjects[id] === 'string') ? this.disabledProjects[id] as string : '',
+            ancestors: project._links.ancestors,
+            children: [],
+          };
+        })),
         map(this.mapResultsFn),
         map((projects) => {
           this.dataLoaded = true;
diff --git a/lib/primer/open_project/forms/autocompleter.html.erb b/lib/primer/open_project/forms/autocompleter.html.erb
index 1f2d040100a5..751846cec8bf 100644
--- a/lib/primer/open_project/forms/autocompleter.html.erb
+++ b/lib/primer/open_project/forms/autocompleter.html.erb
@@ -11,7 +11,7 @@
                  append_to: @autocomplete_options.fetch(:append_to, 'body')
                } %>
   <% else %>
-    <%= angular_component_tag @autocomplete_options.fetch(:component, 'opce-autocompleter'),
+    <%= angular_component_tag @autocomplete_options.fetch(:component),
                               data: @autocomplete_options.delete(:data) { {} },
                               inputs: @autocomplete_options.merge(
                                 classes: "ng-select--primerized #{@input.invalid? ? '-error' : ''}",
diff --git a/lib/primer/open_project/forms/dsl/autocompleter_input.rb b/lib/primer/open_project/forms/dsl/autocompleter_input.rb
index ea4355547802..497658f27d91 100644
--- a/lib/primer/open_project/forms/dsl/autocompleter_input.rb
+++ b/lib/primer/open_project/forms/dsl/autocompleter_input.rb
@@ -28,7 +28,7 @@ def to_h
           def initialize(name:, label:, autocomplete_options:, wrapper_data_attributes: {}, **system_arguments)
             @name = name
             @label = label
-            @autocomplete_options = autocomplete_options
+            @autocomplete_options = derive_autocompleter_options(autocomplete_options)
             @wrapper_data_attributes = wrapper_data_attributes
             @select_options = []
 
@@ -37,6 +37,12 @@ def initialize(name:, label:, autocomplete_options:, wrapper_data_attributes: {}
             yield(self) if block_given?
           end
 
+          def derive_autocompleter_options(options)
+            options.reverse_merge(
+              component: "opce-autocompleter"
+            )
+          end
+
           def option(**args)
             @select_options << Option.new(**args)
           end
diff --git a/lib/primer/open_project/forms/dsl/input_methods.rb b/lib/primer/open_project/forms/dsl/input_methods.rb
index 28e31ef4eacd..5a4aa6148507 100644
--- a/lib/primer/open_project/forms/dsl/input_methods.rb
+++ b/lib/primer/open_project/forms/dsl/input_methods.rb
@@ -9,6 +9,14 @@ def autocompleter(**, &)
             add_input AutocompleterInput.new(builder: @builder, form: @form, **, &)
           end
 
+          def work_package_autocompleter(**, &)
+            add_input WorkPackageAutocompleterInput.new(builder: @builder, form: @form, **, &)
+          end
+
+          def project_autocompleter(**, &)
+            add_input ProjectAutocompleterInput.new(builder: @builder, form: @form, **, &)
+          end
+
           def rich_text_area(**)
             add_input RichTextAreaInput.new(builder: @builder, form: @form, **)
           end
diff --git a/lib/primer/open_project/forms/dsl/project_autocompleter_input.rb b/lib/primer/open_project/forms/dsl/project_autocompleter_input.rb
new file mode 100644
index 000000000000..5b58c0ba542f
--- /dev/null
+++ b/lib/primer/open_project/forms/dsl/project_autocompleter_input.rb
@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+
+module Primer
+  module OpenProject
+    module Forms
+      module Dsl
+        class ProjectAutocompleterInput < AutocompleterInput
+          def derive_autocompleter_options(options)
+            options.reverse_merge!(
+              component: "opce-project-autocompleter",
+              defaultData: false,
+              filters: [{ name: 'active', operator: '=', values: ['t'] }],
+            )
+
+            if options[:disabledProjects]
+              options[:disabledProjects].stringify_keys!
+            end
+
+            options
+          end
+        end
+      end
+    end
+  end
+end
diff --git a/lib/primer/open_project/forms/dsl/work_package_autocompleter_input.rb b/lib/primer/open_project/forms/dsl/work_package_autocompleter_input.rb
new file mode 100644
index 000000000000..8a96cee13973
--- /dev/null
+++ b/lib/primer/open_project/forms/dsl/work_package_autocompleter_input.rb
@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+module Primer
+  module OpenProject
+    module Forms
+      module Dsl
+        class WorkPackageAutocompleterInput < AutocompleterInput
+          def derive_autocompleter_options(options)
+            options.reverse_merge(
+              component: "opce-autocompleter",
+              resource: "work_packages",
+              searchKey: "subjectOrId",
+            )
+          end
+        end
+      end
+    end
+  end
+end
diff --git a/lookbook/docs/patterns/03-autocompleters.md.erb b/lookbook/docs/patterns/03-autocompleters.md.erb
index 5e1781bb2b7c..c383ef24a31a 100644
--- a/lookbook/docs/patterns/03-autocompleters.md.erb
+++ b/lookbook/docs/patterns/03-autocompleters.md.erb
@@ -69,6 +69,13 @@ Keep in mind that this component uses the live work packages API, so results wil
 
 <%= embed OpenProject::Common::AutocompletePreview, :work_package, panels: %i[source] %>
 
+### Project autocompletion
+
+For project autocompletion, you can use the same field, but with a different configuration.
+Keep in mind that this component uses the live projects API, so results will depend on whether you are logged in.
+
+<%= embed OpenProject::Common::AutocompletePreview, :project, panels: %i[source] %>
+
 ### Outside primer
 
 If you're not in a primer form, you can render the autocomplete directly like so:
diff --git a/lookbook/previews/open_project/common/autocomplete_preview.rb b/lookbook/previews/open_project/common/autocomplete_preview.rb
index 6405bcd032a8..3b0388849e3e 100644
--- a/lookbook/previews/open_project/common/autocomplete_preview.rb
+++ b/lookbook/previews/open_project/common/autocomplete_preview.rb
@@ -40,6 +40,11 @@ def decorated
       def work_package
         render_with_template
       end
+
+      # @display min_height 250px
+      def project
+        render_with_template
+      end
     end
   end
 end
diff --git a/lookbook/previews/open_project/common/autocomplete_preview/project.html.erb b/lookbook/previews/open_project/common/autocomplete_preview/project.html.erb
new file mode 100644
index 000000000000..b597688638a2
--- /dev/null
+++ b/lookbook/previews/open_project/common/autocomplete_preview/project.html.erb
@@ -0,0 +1,28 @@
+<%
+  the_form = Class.new(ApplicationForm) do
+    form do |f|
+      f.project_autocompleter(
+        name: :id,
+        label: Project.model_name.human,
+        visually_hide_label: true,
+        autocomplete_options: {
+          openDirectly: false,
+          focusDirectly: false,
+          dropdownPosition: 'bottom',
+          disabledProjects: Project.visible.take(10).pluck(:id).to_h { |id| [id, "Disabled reason!"] }
+        }
+      )
+    end
+  end
+
+  model = Project.new
+%>
+
+
+<%= primer_form_with(
+      model:,
+      url: '/abc',
+      id: 'asdf') do |f|
+  render(the_form.new(f))
+end
+%>
diff --git a/lookbook/previews/open_project/common/autocomplete_preview/work_package.html.erb b/lookbook/previews/open_project/common/autocomplete_preview/work_package.html.erb
index 3d5b6f719c2f..2408d9b885cd 100644
--- a/lookbook/previews/open_project/common/autocomplete_preview/work_package.html.erb
+++ b/lookbook/previews/open_project/common/autocomplete_preview/work_package.html.erb
@@ -1,7 +1,7 @@
 <%
   the_form = Class.new(ApplicationForm) do
     form do |f|
-      f.autocompleter(
+      f.work_package_autocompleter(
         name: :id,
         label: WorkPackage.model_name.human,
         visually_hide_label: true,
diff --git a/modules/meeting/app/forms/meeting_agenda_item/work_package.rb b/modules/meeting/app/forms/meeting_agenda_item/work_package.rb
index 7b2f169b7d68..fcc6dd81d7bf 100644
--- a/modules/meeting/app/forms/meeting_agenda_item/work_package.rb
+++ b/modules/meeting/app/forms/meeting_agenda_item/work_package.rb
@@ -28,7 +28,7 @@
 
 class MeetingAgendaItem::WorkPackage < ApplicationForm
   form do |agenda_item_form|
-    agenda_item_form.autocompleter(
+    agenda_item_form.work_package_autocompleter(
       name: :work_package_id,
       label: WorkPackage.model_name.human,
       visually_hide_label: true,
@@ -37,8 +37,6 @@ class MeetingAgendaItem::WorkPackage < ApplicationForm
         data: {
           "test-selector": "op-agenda-items-wp-autocomplete"
         },
-        resource: "work_packages",
-        searchKey: "subjectOrId",
         focusDirectly: true,
         disabled: @disabled
       }