diff --git a/frontend/src/lib/i18n/locales/en.json b/frontend/src/lib/i18n/locales/en.json
index 8f79f2294..c66f607d1 100644
--- a/frontend/src/lib/i18n/locales/en.json
+++ b/frontend/src/lib/i18n/locales/en.json
@@ -44,6 +44,9 @@
         }
       }
     },
+    "bulk_add_users_modal": {
+      "button_title": "Bulk Add Users",
+    },
     "create_user_modal": {
       "create_user": "Create User",
       "help_create_single_guest_user": "You can invite users to register and join a project by themselves with the **Add Project Member** button. See [Add Project Member]({helpLink}) for details.",
diff --git a/frontend/src/routes/(authenticated)/admin/+page.svelte b/frontend/src/routes/(authenticated)/admin/+page.svelte
index 1b045a5da..f9aec3f9d 100644
--- a/frontend/src/routes/(authenticated)/admin/+page.svelte
+++ b/frontend/src/routes/(authenticated)/admin/+page.svelte
@@ -23,6 +23,7 @@
   import type { Confidentiality } from '$lib/components/Projects';
   import { browser } from '$app/environment';
   import UserTable from './UserTable.svelte';
+  import type { UUID } from 'crypto';
 
   export let data: PageData;
   $: projects = data.projects;
@@ -41,6 +42,7 @@
     memberSearch: queryParam.string(undefined),
     projectSearch: queryParam.string<string>(''),
     tab: queryParam.string<AdminTabId>('projects'),
+    targetOrgId: queryParam.string<UUID | ''>(''),
   });
 
   const userFilterKeys = ['userSearch'] as const satisfies Readonly<(keyof AdminSearchParams)[]>;
@@ -60,6 +62,15 @@
   $: users = $userData?.items ?? [];
   $: filteredUserCount = $userData?.totalCount ?? 0;
   $: shownUsers = lastLoadUsedActiveFilter ? users : users.slice(0, 10);
+  let selectedUsers: User[] = [];
+
+  function bulkAddSelectedUsersToOrg(): void {
+    if (!$queryParamValues.targetOrgId) {
+      // Shouldn't have been called
+      return;
+    }
+    console.log(`Would add the following users to org with ID ${$queryParamValues.targetOrgId}:`, selectedUsers);
+  }
 
   function filterProjectsByUser(user: User): void {
     $queryParamValues.memberSearch = user.email ?? user.username ?? undefined;
@@ -131,6 +142,15 @@
               </Badge>
             </div>
           </div>
+          {#if $queryParamValues.targetOrgId}
+          <button class="btn btn-sm btn-primary max-xs:btn-square"
+            on:click={bulkAddSelectedUsersToOrg}>
+            <span class="admin-tabs:hidden">
+              {$t('admin_dashboard.bulk_add_users_modal.button_title')}
+            </span>
+            <span class="i-mdi-plus text-2xl" />
+          </button>
+          {/if}
           <!-- svelte-ignore a11y-no-static-element-interactions -->
           <svelte:element this={browser ? 'button' : 'div'} class="btn btn-sm btn-success max-xs:btn-square"
             on:click={() => createUserModal.open()}>
@@ -157,6 +177,7 @@
       <div class="overflow-x-auto @container scroll-shadow">
         <UserTable
           {shownUsers}
+          bind:selectedUsers
           on:openUserModal={(event) => userModal.open(event.detail)}
           on:editUser={(event) => openModal(event.detail)}
           on:filterProjectsByUser={(event) => filterProjectsByUser(event.detail)}
diff --git a/frontend/src/routes/(authenticated)/admin/+page.ts b/frontend/src/routes/(authenticated)/admin/+page.ts
index 5a2ea2f7f..1a3b3112e 100644
--- a/frontend/src/routes/(authenticated)/admin/+page.ts
+++ b/frontend/src/routes/(authenticated)/admin/+page.ts
@@ -22,11 +22,13 @@ import type { ProjectFilters } from '$lib/components/Projects';
 import { DEFAULT_PAGE_SIZE } from '$lib/components/Paging';
 import type { AdminTabId } from './AdminTabs.svelte';
 import { derived, readable } from 'svelte/store';
+import type { UUID } from 'crypto';
 
 // eslint-disable-next-line @typescript-eslint/no-redundant-type-constituents -- false positive?
 export type AdminSearchParams = ProjectFilters & {
   userSearch: string
   tab: AdminTabId
+  targetOrgId: UUID | ''
 };
 
 export type Project = NonNullable<LoadAdminDashboardProjectsQuery['projects']>[number];
diff --git a/frontend/src/routes/(authenticated)/org/[org_id]/+page.svelte b/frontend/src/routes/(authenticated)/org/[org_id]/+page.svelte
index f4b7c35c0..36e37aa0e 100644
--- a/frontend/src/routes/(authenticated)/org/[org_id]/+page.svelte
+++ b/frontend/src/routes/(authenticated)/org/[org_id]/+page.svelte
@@ -138,6 +138,11 @@
         </Button>
       </div>
       <AdminContent>
+        <div class="mt-4 flex justify-end">
+          <a class="btn btn-success" href="/admin?targetOrgId={org.id}">
+            {$t('admin_dashboard.bulk_add_users_modal.button_title')}
+          </a>
+        </div>
         <div class="divider" />
         <div class="flex justify-end">
           <Button variant="btn-error" on:click={confirmDeleteOrg}>