diff --git a/atst/routes/applications/settings.py b/atst/routes/applications/settings.py
index e12a66f9..eebd3d32 100644
--- a/atst/routes/applications/settings.py
+++ b/atst/routes/applications/settings.py
@@ -179,3 +179,21 @@ def delete(application_id):
             "applications.portfolio_applications", portfolio_id=application.portfolio_id
         )
     )
+
+
+@applications_bp.route("/environments/<environment_id>/delete", methods=["POST"])
+@user_can(Permissions.DELETE_ENVIRONMENT, message="delete delete_environment")
+def delete_environment(environment_id):
+    environment = Environments.get(environment_id)
+    Environments.delete(environment=environment, commit=True)
+
+    flash("environment_deleted", environment_name=environment.name)
+
+    return redirect(
+        url_for(
+            "applications.settings",
+            application_id=environment.application_id,
+            _anchor="application-environments",
+            fragment="application-environments",
+        )
+    )
diff --git a/atst/utils/flash.py b/atst/utils/flash.py
index 9fff1be2..9855628e 100644
--- a/atst/utils/flash.py
+++ b/atst/utils/flash.py
@@ -2,6 +2,11 @@ from flask import flash, render_template_string
 from atst.utils.localization import translate
 
 MESSAGES = {
+    "environment_deleted": {
+        "title_template": "{{ environment_name }} deleted",
+        "message_template": 'The environment "{{ environment_name }}" has been deleted',
+        "category": "success",
+    },
     "application_environments_updated": {
         "title_template": "Application environments updated",
         "message_template": "Application environments have been updated",
diff --git a/templates/fragments/applications/edit_environments.html b/templates/fragments/applications/edit_environments.html
index cd27c2d3..ec021234 100644
--- a/templates/fragments/applications/edit_environments.html
+++ b/templates/fragments/applications/edit_environments.html
@@ -2,6 +2,7 @@
 {% from "components/toggle_list.html" import ToggleButton, ToggleSection %}
 {% from "components/text_input.html" import TextInput %}
 {% from "components/save_button.html" import SaveButton %}
+{% from "components/modal.html" import Modal %}
 
 {% macro RolePanel(users=[], role='no_access') %}
   {% if role == 'no_access' %}
@@ -51,6 +52,7 @@
         {% set member_count = env['members_form'].data['team_roles'] | length %}
         {% set members_by_role = env['members'] %}
         {% set unassigned = members_by_role['no_access'] %}
+        {% set delete_environment_modal_id = 'delete' %}
 
         <toggler inline-template>
           <li class="accordion-table__item">
@@ -74,7 +76,7 @@
                 </span>
               </div>
               <div class="col col--grow">
-                <span class="icon-link icon-link--danger">
+                <span class="icon-link icon-link--danger" alt="Delete environment" v-on:click="openModal('{{ delete_environment_modal_id }}')">
                   {{ Icon('trash') }}
                 </span>
               </div>
@@ -122,6 +124,42 @@
             {% endcall %}
           </li>
         </toggler>
+
+        {% call Modal(name=delete_environment_modal_id, dismissable=True) %}
+          <h1>Are you sure you want to delete this environment?</h1>
+
+          {{
+            Alert(
+              level="warning",
+              title="Warning! This action is permanent",
+              message="You will no longer be able to access this environment",
+            )
+          }}
+
+          <delete-confirmation inline-template>
+            <div>
+              <div class="usa-input">
+                <label for="deleted-text">
+                  <span class="usa-input__help">
+                    {{ "common.delete_confirm" | translate }}
+                  </span>
+                </label>
+                <input id="deleted-text" v-model="deleteText">
+              </div>
+              <div class="action-group">
+                <form method="POST" action="{{ url_for('applications.delete_environment', environment_id=env['id']) }}">
+                  {{ form.csrf_token }}
+                  <button class="usa-button button-danger" v-bind:disabled="!valid">
+                    {{ "portfolios.applications.delete.button" | translate }}
+                  </button>
+                </form>
+                <div class="action-group">
+                  <a v-on:click="deleteText = ''; $root.closeModal('delete-application')" class="action-group__action icon-link icon-link--default">{{ "common.cancel" | translate }}</a>
+                </div>
+              </div>
+            </div>
+          </delete-confirmation>
+        {% endcall %}
       {% endfor %}
     </ul>
   </div>
diff --git a/tests/routes/applications/test_settings.py b/tests/routes/applications/test_settings.py
index 8bcf7bc7..01394afa 100644
--- a/tests/routes/applications/test_settings.py
+++ b/tests/routes/applications/test_settings.py
@@ -306,3 +306,32 @@ def test_delete_application(client, user_session):
     # app and envs are soft deleted
     assert len(port.applications) == 0
     assert len(application.environments) == 0
+
+
+def test_delete_environment(client, user_session):
+    user = UserFactory.create()
+    portfolio = PortfolioFactory(owner=user)
+    application = ApplicationFactory.create(portfolio=portfolio)
+    environment = EnvironmentFactory.create(application=application)
+
+    user_session(user)
+
+    response = client.post(
+        url_for("applications.delete_environment", environment_id=environment.id)
+    )
+
+    # appropriate response and redirect
+    assert response.status_code == 302
+    assert response.location == url_for(
+        "applications.settings",
+        application_id=application.id,
+        _anchor="application-environments",
+        _external=True,
+        fragment="application-environments",
+    )
+    # appropriate flash message
+    message = get_flashed_messages()[0]
+    assert "deleted" in message["message"]
+    assert environment.name in message["message"]
+    # deletes environment
+    assert len(application.environments) == 0