diff --git a/app/modules/project/templates/project/project.html b/app/modules/project/templates/project/project.html
index bcbf42a..07b8169 100644
--- a/app/modules/project/templates/project/project.html
+++ b/app/modules/project/templates/project/project.html
@@ -1,7 +1,9 @@
 {% extends "erp_base.html" %}
 
 {% block head_extra %}
-<link rel="stylesheet" href="/static/project.css?v=20260625b" />
+<link rel="stylesheet" href="/static/project.css?v=20260625c" />
+<!-- 구글 머티리얼 심볼(담당자 아이콘 등) -->
+<link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@24,400,0,0" />
 <!-- 달력은 휴가 모듈과 동일한 서버 렌더 그리드(project.css). 타임라인만 vis(CDN, 추후 self-host) -->
 <link href="https://cdn.jsdelivr.net/npm/vis-timeline@7.7.3/styles/vis-timeline-graph2d.min.css" rel="stylesheet" />
 {% endblock %}
@@ -49,8 +51,8 @@
         <ul class="pj-member-list" id="pj-member-list">
           {% for m in members %}
           <li>
-            <span class="pj-avatar">{{ (m.user_name or m.user_email)[0] | upper }}</span>
-            <span class="pj-member-name">{{ m.user_name or m.user_email }}</span>
+            <span class="material-symbols-outlined pj-gicon">account_circle</span>
+            <span class="pj-member-name">{{ m.user_email.split('@')[0] }}</span>
             {% if m.role == 'manager' %}<span class="pj-chip pj-chip-sm">관리</span>{% endif %}
             {% if is_admin %}
             <button type="button" class="pj-icon-btn pj-del-member" data-email="{{ m.user_email }}" title="제외">×</button>
@@ -154,8 +156,8 @@
         <select id="pj-t-assignee">
           <option value="">(미지정)</option>
           {% for m in members %}
-          <option value="{{ m.user_email }}" data-name="{{ m.user_name or m.user_email }}">
-            {{ m.user_name or m.user_email }}
+          <option value="{{ m.user_email }}" data-name="{{ m.user_email.split('@')[0] }}">
+            {{ m.user_email.split('@')[0] }}
           </option>
           {% endfor %}
         </select>
@@ -200,5 +202,5 @@
 </script>
 
 <script src="https://cdn.jsdelivr.net/npm/vis-timeline@7.7.3/standalone/umd/vis-timeline-graph2d.min.js"></script>
-<script src="/static/project.js?v=20260625b" defer></script>
+<script src="/static/project.js?v=20260625c" defer></script>
 {% endblock %}
diff --git a/app/static/project.css b/app/static/project.css
index 459f738..27effad 100644
--- a/app/static/project.css
+++ b/app/static/project.css
@@ -67,8 +67,11 @@
 .pj-sub-dot { width: 8px; height: 8px; border-radius: 50%; }
 .pj-member-name { font-size: 13px; flex: 1; }
 
-.pj-avatar { display: inline-flex; align-items: center; justify-content: center; width: 24px; height: 24px; border-radius: 50%; background: #d6e0f5; color: #2b4a85; font-size: 11px; font-weight: 700; flex: 0 0 auto; }
-.pj-avatar-sm { width: 20px; height: 20px; font-size: 10px; }
+/* 구글 머티리얼 심볼 아이콘(담당자) */
+.material-symbols-outlined { font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24; line-height: 1; vertical-align: middle; }
+.pj-gicon { font-size: 24px; color: #5f6368; flex: 0 0 auto; }
+.pj-gicon-sm { font-size: 20px; }
+.pj-assignee { display: inline-flex; align-items: center; gap: 3px; font-size: 12px; color: #5f6368; }
 
 /* ── 툴바 + 탭 ── */
 .pj-toolbar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
diff --git a/app/static/project.js b/app/static/project.js
index 201fae1..a43d037 100644
--- a/app/static/project.js
+++ b/app/static/project.js
@@ -204,7 +204,10 @@
         (t.priority && t.priority !== "normal"
           ? '<span class="pj-pri pj-pri-' + t.priority + '">' + (priorityLabels[t.priority] || t.priority) + "</span>"
           : "") +
-        (t.assignee_email ? '<span class="pj-avatar pj-avatar-sm">' + escapeHtml((t.assignee_name || t.assignee_email)[0].toUpperCase()) + "</span>" : "") +
+        (t.assignee_email
+          ? '<span class="pj-assignee"><span class="material-symbols-outlined pj-gicon pj-gicon-sm">account_circle</span>' +
+            escapeHtml(idOf(t.assignee_email)) + "</span>"
+          : "") +
         (t.due_date ? '<span class="pj-card-due">' + t.due_date + "</span>" : "") +
         "</div>";
       card.addEventListener("click", function () { if (canManage) openTaskModal(t); });
@@ -244,7 +247,7 @@
         if (t.completed_at) tr.className = "is-done";
         tr.innerHTML =
           "<td>" + escapeHtml(t.title) + "</td>" +
-          "<td>" + escapeHtml(t.assignee_name || t.assignee_email || "-") + "</td>" +
+          "<td>" + (t.assignee_email ? escapeHtml(idOf(t.assignee_email)) : "-") + "</td>" +
           "<td>" + escapeHtml(t.stage_name || "-") + "</td>" +
           "<td>" + (priorityLabels[t.priority] || t.priority || "-") + "</td>" +
           "<td>" + (t.start_date || "-") + "</td>" +
@@ -367,6 +370,10 @@
     wireCalendar();
   }
 
+  function idOf(email) {
+    return String(email == null ? "" : email).split("@")[0];
+  }
+
   function escapeHtml(s) {
     return String(s == null ? "" : s)
       .replace(/&/g, "&amp;").replace(/</g, "&lt;").replace(/>/g, "&gt;")