diff --git a/atst/forms/officers.py b/atst/forms/officers.py
index 4df1f5a7..1bbb14e3 100644
--- a/atst/forms/officers.py
+++ b/atst/forms/officers.py
@@ -1,7 +1,7 @@
 from flask_wtf import FlaskForm
 from wtforms.fields import StringField
 from wtforms.fields.html5 import TelField
-from wtforms.validators import Length, Optional
+from wtforms.validators import Email, Length, Optional
 
 from atst.forms.validators import IsNumber, PhoneNumber
 
@@ -12,7 +12,7 @@ from .fields import FormFieldWrapper
 class OfficerForm(FlaskForm):
     first_name = StringField("First Name")
     last_name = StringField("Last Name")
-    email = StringField("Email")
+    email = StringField("Email", validators=[Optional(), Email()])
     phone_number = TelField("Phone Number", validators=[PhoneNumber()])
     dod_id = StringField("DoD ID", validators=[Optional(), Length(min=10), IsNumber()])
 
diff --git a/atst/forms/task_order.py b/atst/forms/task_order.py
index 9a536db1..7d1c2167 100644
--- a/atst/forms/task_order.py
+++ b/atst/forms/task_order.py
@@ -10,7 +10,7 @@ from wtforms.fields import (
 )
 from wtforms.fields.html5 import DateField, TelField
 from wtforms.widgets import ListWidget, CheckboxInput
-from wtforms.validators import Length, Required, Optional
+from wtforms.validators import Email, Length, Required, Optional
 from flask_wtf.file import FileAllowed
 
 from atst.forms.validators import IsNumber, PhoneNumber, RequiredIf
@@ -132,7 +132,10 @@ class OversightForm(CacheableForm):
         translate("forms.task_order.oversight_first_name_label")
     )
     ko_last_name = StringField(translate("forms.task_order.oversight_last_name_label"))
-    ko_email = StringField(translate("forms.task_order.oversight_email_label"))
+    ko_email = StringField(
+        translate("forms.task_order.oversight_email_label"),
+        validators=[Optional(), Email()],
+    )
     ko_phone_number = TelField(
         translate("forms.task_order.oversight_phone_label"),
         validators=[Optional(), PhoneNumber()],
@@ -151,7 +154,10 @@ class OversightForm(CacheableForm):
         translate("forms.task_order.oversight_first_name_label")
     )
     cor_last_name = StringField(translate("forms.task_order.oversight_last_name_label"))
-    cor_email = StringField(translate("forms.task_order.oversight_email_label"))
+    cor_email = StringField(
+        translate("forms.task_order.oversight_email_label"),
+        validators=[Optional(), Email()],
+    )
     cor_phone_number = TelField(
         translate("forms.task_order.oversight_phone_label"),
         validators=[
@@ -176,7 +182,10 @@ class OversightForm(CacheableForm):
         translate("forms.task_order.oversight_first_name_label")
     )
     so_last_name = StringField(translate("forms.task_order.oversight_last_name_label"))
-    so_email = StringField(translate("forms.task_order.oversight_email_label"))
+    so_email = StringField(
+        translate("forms.task_order.oversight_email_label"),
+        validators=[Optional(), Email()],
+    )
     so_phone_number = TelField(
         translate("forms.task_order.oversight_phone_label"),
         validators=[Optional(), PhoneNumber()],
diff --git a/templates/components/user_info.html b/templates/components/user_info.html
index cd5e8c6e..aa2507ee 100644
--- a/templates/components/user_info.html
+++ b/templates/components/user_info.html
@@ -13,7 +13,7 @@
 
 <div class='form-row'>
   <div class='form-col form-col--half'>
-    {{ TextInput(email, placeholder='name@mail.mil') }}
+    {{ TextInput(email, placeholder='name@mail.mil', validation='email') }}
   </div>
 
   <div class='form-col form-col--half'>
diff --git a/templates/portfolios/task_orders/invitations.html b/templates/portfolios/task_orders/invitations.html
index 3abc03e7..61d2ddd4 100644
--- a/templates/portfolios/task_orders/invitations.html
+++ b/templates/portfolios/task_orders/invitations.html
@@ -28,7 +28,7 @@
 
         <div class='form-row'>
           <div class='form-col form-col--half'>
-            {{ TextInput(form.email, placeholder='name@mail.mil') }}
+            {{ TextInput(form.email, placeholder='name@mail.mil', validation='email') }}
           </div>
 
           <div class='form-col form-col--half'>
diff --git a/tests/forms/test_officers.py b/tests/forms/test_officers.py
index ce6ca1eb..01d94be0 100644
--- a/tests/forms/test_officers.py
+++ b/tests/forms/test_officers.py
@@ -54,3 +54,10 @@ class TestEditTaskOrderOfficersForm:
         form.populate_obj(task_order)
         assert task_order.so_first_name == data["security_officer-first_name"]
         assert task_order.so_last_name == data["security_officer-last_name"]
+
+    def test_email_validation(self):
+        data = {"contracting_officer-email": "not_really_an_email_address"}
+        formdata = ImmutableMultiDict(data)
+        form = EditTaskOrderOfficersForm(formdata)
+        assert not form.validate()
+        assert form.contracting_officer.email.errors == ["Invalid email address."]
diff --git a/tests/routes/task_orders/test_new_task_order.py b/tests/routes/task_orders/test_new_task_order.py
index bbe461e9..6e78a6f1 100644
--- a/tests/routes/task_orders/test_new_task_order.py
+++ b/tests/routes/task_orders/test_new_task_order.py
@@ -122,6 +122,26 @@ def test_task_order_form_shows_errors(client, user_session):
     assert "Not a valid decimal" in body
 
 
+def test_task_order_validates_email_address(client, user_session):
+    to = task_order()
+    creator = to.creator
+    user_session(creator)
+
+    task_order_data = TaskOrderFactory.dictionary()
+    oversight_data = slice_data_for_section(task_order_data, "oversight")
+    oversight_data.update({"ko_email": "not an email"})
+
+    response = client.post(
+        url_for("task_orders.update", screen=3, task_order_id=to.id),
+        data=oversight_data,
+        follow_redirects=False,
+    )
+
+    body = response.data.decode()
+    assert "There were some errors" in body
+    assert "Invalid email" in body
+
+
 @pytest.fixture
 def task_order():
     user = UserFactory.create()