diff --git a/web/modals/user-profile/user-profile-avatar-modal.react.js b/web/modals/user-profile/user-profile-avatar-modal.react.js
new file mode 100644
--- /dev/null
+++ b/web/modals/user-profile/user-profile-avatar-modal.react.js
@@ -0,0 +1,27 @@
+// @flow
+
+import * as React from 'react';
+
+import UserAvatar from '../../avatars/user-avatar.react.js';
+import FullScreenViewModal from '../full-screen-view-modal.react.js';
+
+type Props = {
+  +userID: ?string,
+};
+
+function UserProfileAvatarModal(props: Props): React.Node {
+  const { userID } = props;
+
+  const userProfileAvatarModal = React.useMemo(
+    () => (
+      <FullScreenViewModal>
+        <UserAvatar size="XXL" userID={userID} />
+      </FullScreenViewModal>
+    ),
+    [userID],
+  );
+
+  return userProfileAvatarModal;
+}
+
+export default UserProfileAvatarModal;
diff --git a/web/modals/user-profile/user-profile.css b/web/modals/user-profile/user-profile.css
--- a/web/modals/user-profile/user-profile.css
+++ b/web/modals/user-profile/user-profile.css
@@ -10,6 +10,10 @@
   margin-bottom: 24px;
 }
 
+.userAvatarContainer:hover {
+  cursor: pointer;
+}
+
 .usernameContainer {
   padding-left: 16px;
 }
diff --git a/web/modals/user-profile/user-profile.react.js b/web/modals/user-profile/user-profile.react.js
--- a/web/modals/user-profile/user-profile.react.js
+++ b/web/modals/user-profile/user-profile.react.js
@@ -2,6 +2,7 @@
 
 import * as React from 'react';
 
+import { useModalContext } from 'lib/components/modal-provider.react.js';
 import SWMansionIcon from 'lib/components/SWMansionIcon.react.js';
 import { relationshipBlockedInEitherDirection } from 'lib/shared/relationship-utils.js';
 import { stringForUserExplicit } from 'lib/shared/user-utils.js';
@@ -10,6 +11,7 @@
 import sleep from 'lib/utils/sleep.js';
 
 import UserProfileActionButtons from './user-profile-action-buttons.react.js';
+import UserProfileAvatarModal from './user-profile-avatar-modal.react.js';
 import css from './user-profile.css';
 import UserAvatar from '../../avatars/user-avatar.react.js';
 
@@ -21,10 +23,16 @@
 function UserProfile(props: Props): React.Node {
   const { userInfo, userProfileThreadInfo } = props;
 
+  const { pushModal } = useModalContext();
+
   const usernameText = stringForUserExplicit(userInfo);
 
   const [usernameCopied, setUsernameCopied] = React.useState<boolean>(false);
 
+  const onClickUserAvatar = React.useCallback(() => {
+    pushModal(<UserProfileAvatarModal userID={userInfo?.id} />);
+  }, [pushModal, userInfo?.id]);
+
   const onClickCopyUsername = React.useCallback(async () => {
     if (usernameCopied) {
       return;
@@ -53,7 +61,9 @@
     () => (
       <div className={css.container}>
         <div className={css.userInfoContainer}>
-          <UserAvatar userID={userInfo?.id} size="L" />
+          <div className={css.userAvatarContainer} onClick={onClickUserAvatar}>
+            <UserAvatar userID={userInfo?.id} size="L" />
+          </div>
           <div className={css.usernameContainer}>
             <div className={css.usernameText}>{usernameText}</div>
             <div
@@ -76,6 +86,7 @@
     [
       actionButtons,
       onClickCopyUsername,
+      onClickUserAvatar,
       userInfo?.id,
       usernameCopied,
       usernameText,