diff --git a/app/controllers/manager/administrateurs_controller.rb b/app/controllers/manager/administrateurs_controller.rb
index 91866045c..83894c0ab 100644
--- a/app/controllers/manager/administrateurs_controller.rb
+++ b/app/controllers/manager/administrateurs_controller.rb
@@ -33,6 +33,21 @@ module Manager
       head :ok
     end
 
+    def delete
+      administrateur = Administrateur.find(params[:id])
+
+      if !administrateur.can_be_deleted?
+        fail "Impossible de supprimer cet administrateur car il a des dossiers ou des procédures"
+      end
+      administrateur.dossiers.each(&:delete_and_keep_track)
+      administrateur.destroy
+
+      logger.info("L'administrateur #{administrateur.id} est supprimé par #{current_user.id}")
+      flash[:notice] = "L'administrateur #{administrateur.id} est supprimé"
+
+      redirect_to manager_administrateurs_path
+    end
+
     private
 
     def create_administrateur_params
diff --git a/app/models/administrateur.rb b/app/models/administrateur.rb
index 6d1de0927..87c4ed221 100644
--- a/app/models/administrateur.rb
+++ b/app/models/administrateur.rb
@@ -123,4 +123,8 @@ class Administrateur < ApplicationRecord
   def gestionnaire
     Gestionnaire.find_by(email: email)
   end
+
+  def can_be_deleted?
+    dossiers.state_instruction_commencee.none? && procedures.none?
+  end
 end
diff --git a/app/views/manager/administrateurs/show.html.erb b/app/views/manager/administrateurs/show.html.erb
index 8d152a733..34b4b9857 100644
--- a/app/views/manager/administrateurs/show.html.erb
+++ b/app/views/manager/administrateurs/show.html.erb
@@ -36,6 +36,7 @@ as well as a link to its edit page.
     <% if page.resource.invitation_expired? %>
       <%= link_to "renvoyer l'invitation", reinvite_manager_administrateur_path(page.resource), method: :post, class: "button" %>
     <% end %>
+    <%= button_to "supprimer", delete_manager_administrateur_path(page.resource), method: :delete, disabled: !page.resource.can_be_deleted?, class: "button", data: { confirm: "Confirmez-vous la suppression de l'administrateur ?" }, title: page.resource.can_be_deleted? ? "Supprimer" : "Cet administrateur a des dossiers ou des procédures et ne peut être supprimé" %>
   </div>
 
 </header>
diff --git a/config/routes.rb b/config/routes.rb
index e77e6eb5f..fc9169607 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -21,6 +21,7 @@ Rails.application.routes.draw do
     resources :administrateurs, only: [:index, :show, :new, :create] do
       post 'reinvite', on: :member
       put 'enable_feature', on: :member
+      delete 'delete', on: :member
     end
 
     resources :users, only: [:index, :show] do