diff --git a/apps/dashboard/app/assets/stylesheets/batch_connect/sessions.scss b/apps/dashboard/app/assets/stylesheets/batch_connect/sessions.scss
index 922448f7ce..a4dd5ffb2b 100644
--- a/apps/dashboard/app/assets/stylesheets/batch_connect/sessions.scss
+++ b/apps/dashboard/app/assets/stylesheets/batch_connect/sessions.scss
@@ -31,6 +31,28 @@
   background-color: #f5f5f5;
 }
 
+.collapsible-app-card {
+  .collapsible-app-card-toggle {
+    cursor: pointer;
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+
+    &::after {
+      content: "";
+      width: 0;
+      height: 0;
+      border-style: solid;
+      border-width: 0.3rem 0 0.3rem 0.45rem;
+      border-color: transparent transparent transparent currentColor;
+    }
+
+    &[aria-expanded="true"]::after {
+      transform: rotate(90deg);
+    }
+  }
+}
+
 .custom-range {
   height: 4px;
   box-shadow: inset 0 1px 10px gray;
diff --git a/apps/dashboard/app/views/batch_connect/shared/_app_list.html.erb b/apps/dashboard/app/views/batch_connect/shared/_app_list.html.erb
index fb3c5273ac..d978e757ff 100644
--- a/apps/dashboard/app/views/batch_connect/shared/_app_list.html.erb
+++ b/apps/dashboard/app/views/batch_connect/shared/_app_list.html.erb
@@ -1,6 +1,21 @@
-<div class="card <%= local_assigns.fetch(:style, "system-and-shared-apps-header") %>">
-  <div class="card-header"><%= title %></div>
-  <div class="list-group list-group-flush">
+<%
+  # HTML ids use underscores per project convention (see CONTRIBUTING.md).
+  # Parameterize the card title so ids stay valid and pair with aria-controls.
+  slug = title.to_s.parameterize(separator: "_").presence || "group"
+  list_dom_id = "bc_app_list_#{slug}_items"
+%>
+<div class="card collapsible-app-card <%= local_assigns.fetch(:style, "system-and-shared-apps-header") %>">
+  <button
+    class="card-header collapsible-app-card-toggle"
+    type="button"
+    data-bs-toggle="collapse"
+    data-bs-target="#<%= list_dom_id %>"
+    aria-expanded="true"
+    aria-controls="<%= list_dom_id %>"
+  >
+    <span><%= title %></span>
+  </button>
+  <div id="<%= list_dom_id %>" class="list-group list-group-flush collapse show">
   <%-
     OodAppGroup.groups_for(
       apps: apps,
diff --git a/apps/dashboard/test/system/batch_connect_sessions_test.rb b/apps/dashboard/test/system/batch_connect_sessions_test.rb
index 81067c7047..70cd9f2ce9 100644
--- a/apps/dashboard/test/system/batch_connect_sessions_test.rb
+++ b/apps/dashboard/test/system/batch_connect_sessions_test.rb
@@ -51,6 +51,30 @@ def stub_scheduler(state, cores: 1, nodes: 1)
     assert_equal(I18n.t('dashboard.batch_connect_no_sessions'), no_session_text)
   end
 
+  test 'collapsible batch connect app menu toggles' do
+    visit(batch_connect_sessions_path)
+
+    within('nav[aria-label="Interactive Apps Menu"]') do
+      card = find('.collapsible-app-card', match: :first)
+      button = card.find('button.collapsible-app-card-toggle')
+      target_id = button['aria-controls']
+      list_group = card.find("##{target_id}", visible: :all)
+
+      assert_equal('false', button['aria-expanded'])
+      assert_not_includes(list_group[:class], 'show')
+
+      button.click
+
+      assert_selector("##{target_id}.show")
+      assert_equal('true', button['aria-expanded'])
+
+      button.click
+
+      assert_no_selector("##{target_id}.show")
+      assert_equal('false', button['aria-expanded'])
+    end
+  end
+
   test 'queued session' do
     Dir.mktmpdir do |dir|
       create_test_file(dir)