diff --git a/internal/web/admin_handlers.go b/internal/web/admin_handlers.go
index 42afda1..a4cf1ff 100644
--- a/internal/web/admin_handlers.go
+++ b/internal/web/admin_handlers.go
@@ -34,6 +34,7 @@ func (s *Server) handlePublicKanzleiList(w http.ResponseWriter, r *http.Request)
 
 type adminDashboardData struct {
 	Title            string
+	Nav              navData
 	AccountCount     int
 	UnverifiedCount  int
 	RecentAuditCount int
@@ -61,7 +62,7 @@ func (s *Server) handleAdminDashboard(w http.ResponseWriter, r *http.Request) {
 	}
 
 	data := adminDashboardData{
-		Title: "Admin", AccountCount: len(accounts), UnverifiedCount: unverified, RecentAuditCount: len(auditLog),
+		Title: "Admin", Nav: navFor(r), AccountCount: len(accounts), UnverifiedCount: unverified, RecentAuditCount: len(auditLog),
 	}
 	if err := s.templates.ExecuteTemplate(w, "admin-dashboard", data); err != nil {
 		http.Error(w, "Seite konnte nicht gerendert werden", http.StatusInternalServerError)
@@ -77,6 +78,7 @@ type adminAccountListItem struct {
 
 type adminAccountListData struct {
 	Title    string
+	Nav      navData
 	Accounts []adminAccountListItem
 }
 
@@ -87,7 +89,7 @@ func (s *Server) handleAdminAccountList(w http.ResponseWriter, r *http.Request)
 		http.Error(w, "Accounts konnten nicht geladen werden: "+err.Error(), http.StatusInternalServerError)
 		return
 	}
-	data := adminAccountListData{Title: "Accounts"}
+	data := adminAccountListData{Title: "Accounts", Nav: navFor(r)}
 	for _, a := range accounts {
 		data.Accounts = append(data.Accounts, adminAccountListItem{
 			ID: a.ID, Name: a.Name, Verified: a.Verified, CreatedAt: a.CreatedAt.Format("02.01.2006 15:04"),
@@ -105,6 +107,7 @@ type adminUserView struct {
 
 type adminAccountDetailData struct {
 	Title      string
+	Nav        navData
 	AccountID  string
 	Name       string
 	Verified   bool
@@ -130,7 +133,7 @@ func (s *Server) handleAdminAccountDetail(w http.ResponseWriter, r *http.Request
 	}
 
 	data := adminAccountDetailData{
-		Title: "Account", AccountID: acc.ID, Name: acc.Name, Verified: acc.Verified,
+		Title: "Account", Nav: navFor(r), AccountID: acc.ID, Name: acc.Name, Verified: acc.Verified,
 		CreatedAt: acc.CreatedAt.Format("02.01.2006 15:04"),
 	}
 	for _, u := range users {
@@ -190,6 +193,7 @@ type adminAuditEntryView struct {
 
 type adminAuditLogData struct {
 	Title   string
+	Nav     navData
 	Entries []adminAuditEntryView
 }
 
@@ -200,7 +204,7 @@ func (s *Server) handleAdminAuditLog(w http.ResponseWriter, r *http.Request) {
 		http.Error(w, "Audit-Log konnte nicht geladen werden: "+err.Error(), http.StatusInternalServerError)
 		return
 	}
-	data := adminAuditLogData{Title: "Audit-Log"}
+	data := adminAuditLogData{Title: "Audit-Log", Nav: navFor(r)}
 	for _, e := range entries {
 		data.Entries = append(data.Entries, adminAuditEntryView{
 			CreatedAt: e.CreatedAt.Format("02.01.2006 15:04:05"), Action: e.Action,
diff --git a/internal/web/admin_handlers_test.go b/internal/web/admin_handlers_test.go
index 4d3e577..b831d20 100644
--- a/internal/web/admin_handlers_test.go
+++ b/internal/web/admin_handlers_test.go
@@ -40,6 +40,28 @@ func TestAdminDashboardAccessibleForAdmin(t *testing.T) {
 	}
 }
 
+// TestNavShowsAdminLinkOnlyForAdmins deckt genau den gemeldeten Fall ab:
+// nach der Anmeldung als Admin landet man auf der normalen Startseite
+// (jeder Nutzer hat einen Account+Login, auch ein Admin) — ohne einen
+// sichtbaren Weg zu /admin wäre der Admin-Bereich für einen Admin, der
+// die URL nicht auswendig kennt, praktisch unerreichbar.
+func TestNavShowsAdminLinkOnlyForAdmins(t *testing.T) {
+	fs := newFakeStore()
+	s := newServer(t, fakeExtractor{}, fs)
+	adminCookie := seedAccountWithRole(t, fs, "Deklarix Admin", "admin@example.com", "admin")
+	tenantCookie := seedAccount(t, fs, "Mandant", "mandant@example.com")
+
+	adminResp := getWithCookie(t, s, adminCookie, "/")
+	if !strings.Contains(adminResp.Body.String(), `href="/admin"`) {
+		t.Errorf("expected an /admin nav link for an admin user, got: %s", adminResp.Body.String())
+	}
+
+	tenantResp := getWithCookie(t, s, tenantCookie, "/")
+	if strings.Contains(tenantResp.Body.String(), `href="/admin"`) {
+		t.Errorf("expected no /admin nav link for a non-admin user, got: %s", tenantResp.Body.String())
+	}
+}
+
 func TestAdminAccountListShowsAllAccountsAcrossTenants(t *testing.T) {
 	fs := newFakeStore()
 	s := newServer(t, fakeExtractor{}, fs)
diff --git a/internal/web/archive_handlers.go b/internal/web/archive_handlers.go
index 8bb0131..b7e85a7 100644
--- a/internal/web/archive_handlers.go
+++ b/internal/web/archive_handlers.go
@@ -18,6 +18,7 @@ type submissionListItem struct {
 
 type submissionListData struct {
 	Title       string
+	Nav         navData
 	Submissions []submissionListItem
 }
 
@@ -31,7 +32,7 @@ func (s *Server) handleSubmissionList(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	data := submissionListData{Title: "Beiträge"}
+	data := submissionListData{Title: "Beiträge", Nav: navFor(r)}
 	for _, sum := range summaries {
 		data.Submissions = append(data.Submissions, submissionListItem{
 			ID: sum.ID, Platform: sum.Platform, PostType: sum.PostType, Status: sum.Status,
@@ -56,6 +57,7 @@ type participantView struct {
 
 type submissionDetailData struct {
 	Title        string
+	Nav          navData
 	SubmissionID string
 	Platform     string
 	PostType     string
@@ -125,7 +127,7 @@ func (s *Server) handleSubmissionDetail(w http.ResponseWriter, r *http.Request)
 	}
 
 	data := submissionDetailData{
-		Title: "Beitrag", SubmissionID: sub.ID, Platform: sub.Platform, PostType: sub.PostType,
+		Title: "Beitrag", Nav: navFor(r), SubmissionID: sub.ID, Platform: sub.Platform, PostType: sub.PostType,
 		Caption: sub.Caption, Status: sub.Status, CreatedAt: sub.CreatedAt.Format("02.01.2006 15:04"),
 		CanArchive: sub.Status == "checked", IsPublished: sub.Status == "published",
 		DossierURL: "/dossier/" + sub.ID, Findings: findings, Participants: toParticipantViews(participants),
diff --git a/internal/web/handlers.go b/internal/web/handlers.go
index af1ba67..5da9f7b 100644
--- a/internal/web/handlers.go
+++ b/internal/web/handlers.go
@@ -21,10 +21,12 @@ func (s *Server) handleHealth(w http.ResponseWriter, r *http.Request) {
 
 type indexData struct {
 	Title string
+	Nav   navData
 }
 
 func (s *Server) handleIndex(w http.ResponseWriter, r *http.Request) {
-	if err := s.templates.ExecuteTemplate(w, "index", indexData{Title: "Pre-Publish-Prüfung"}); err != nil {
+	data := indexData{Title: "Pre-Publish-Prüfung", Nav: navFor(r)}
+	if err := s.templates.ExecuteTemplate(w, "index", data); err != nil {
 		http.Error(w, "Seite konnte nicht gerendert werden", http.StatusInternalServerError)
 	}
 }
diff --git a/internal/web/middleware.go b/internal/web/middleware.go
index 07a0545..7119461 100644
--- a/internal/web/middleware.go
+++ b/internal/web/middleware.go
@@ -88,6 +88,21 @@ func (s *Server) requireAdmin(next http.HandlerFunc) http.HandlerFunc {
 	}
 }
 
+// navData steuert die gemeinsame Navigation (layout.html, "nav"-Block).
+// Eigenes, kleines Struct statt jeder Seite Zugriff auf den vollen
+// currentUser zu geben — die Navigation braucht nur, ob ein Admin-Link
+// gezeigt werden soll.
+type navData struct {
+	IsAdmin bool
+}
+
+// navFor liefert die Nav-Daten für den angemeldeten Nutzer der Anfrage.
+// Nur für Seiten hinter requirePage/requireAdmin aufrufbar (braucht
+// currentUser).
+func navFor(r *http.Request) navData {
+	return navData{IsAdmin: currentUser(r).Role == "admin"}
+}
+
 // currentUser liest den Nutzer, den requirePage/requireAPI in den
 // Kontext gelegt haben. Panics, wenn es aufgerufen wird, ohne dass eine
 // dieser Middlewares vorgeschaltet war — das ist ein Programmierfehler,
diff --git a/internal/web/templates/admin_account_detail.html b/internal/web/templates/admin_account_detail.html
index e193115..73a5aae 100644
--- a/internal/web/templates/admin_account_detail.html
+++ b/internal/web/templates/admin_account_detail.html
@@ -2,7 +2,7 @@
 <html lang="de">
 <head>{{template "head" .}}</head>
 <body>
-{{template "nav" .}}
+{{template "nav" .Nav}}
 <div class="page">
 <p><a href="/admin/accounts">&larr; Alle Accounts</a></p>
 <h1>{{.Name}}</h1>
diff --git a/internal/web/templates/admin_accounts.html b/internal/web/templates/admin_accounts.html
index f119d9b..31b7b66 100644
--- a/internal/web/templates/admin_accounts.html
+++ b/internal/web/templates/admin_accounts.html
@@ -2,7 +2,7 @@
 <html lang="de">
 <head>{{template "head" .}}</head>
 <body>
-{{template "nav" .}}
+{{template "nav" .Nav}}
 <div class="page">
 <p><a href="/admin">&larr; Admin</a></p>
 <h1>Accounts</h1>
diff --git a/internal/web/templates/admin_audit_log.html b/internal/web/templates/admin_audit_log.html
index 1e3d9d9..5da5afc 100644
--- a/internal/web/templates/admin_audit_log.html
+++ b/internal/web/templates/admin_audit_log.html
@@ -2,7 +2,7 @@
 <html lang="de">
 <head>{{template "head" .}}</head>
 <body>
-{{template "nav" .}}
+{{template "nav" .Nav}}
 <div class="page">
 <p><a href="/admin">&larr; Admin</a></p>
 <h1>Audit-Log</h1>
diff --git a/internal/web/templates/admin_dashboard.html b/internal/web/templates/admin_dashboard.html
index 42bf93d..59a3044 100644
--- a/internal/web/templates/admin_dashboard.html
+++ b/internal/web/templates/admin_dashboard.html
@@ -2,7 +2,7 @@
 <html lang="de">
 <head>{{template "head" .}}</head>
 <body>
-{{template "nav" .}}
+{{template "nav" .Nav}}
 <div class="page">
 <h1>Admin</h1>
 <ul class="admin-kacheln">
diff --git a/internal/web/templates/beitraege.html b/internal/web/templates/beitraege.html
index 7aa1cbd..deb2c2a 100644
--- a/internal/web/templates/beitraege.html
+++ b/internal/web/templates/beitraege.html
@@ -2,7 +2,7 @@
 <html lang="de">
 <head>{{template "head" .}}</head>
 <body>
-{{template "nav" .}}
+{{template "nav" .Nav}}
 <div class="page">
 <h1>Beiträge</h1>
 
diff --git a/internal/web/templates/beitrag.html b/internal/web/templates/beitrag.html
index 039cb41..5059812 100644
--- a/internal/web/templates/beitrag.html
+++ b/internal/web/templates/beitrag.html
@@ -2,7 +2,7 @@
 <html lang="de">
 <head>{{template "head" .}}</head>
 <body>
-{{template "nav" .}}
+{{template "nav" .Nav}}
 <div class="page">
 <p><a href="/beitraege">&larr; Alle Beiträge</a></p>
 <h1>{{.Platform}} · {{.PostType}}</h1>
diff --git a/internal/web/templates/index.html b/internal/web/templates/index.html
index 8be8031..d5d4ca7 100644
--- a/internal/web/templates/index.html
+++ b/internal/web/templates/index.html
@@ -2,7 +2,7 @@
 <html lang="de">
 <head>{{template "head" .}}</head>
 <body>
-{{template "nav" .}}
+{{template "nav" .Nav}}
 <div class="page">
 <h1>Pre-Publish-Prüfung</h1>
 <p>Caption und Plattform eingeben, um auf Kennzeichnungsrisiken zu prüfen.</p>
diff --git a/internal/web/templates/layout.html b/internal/web/templates/layout.html
index d44595b..187d775 100644
--- a/internal/web/templates/layout.html
+++ b/internal/web/templates/layout.html
@@ -10,6 +10,7 @@
 <nav>
   <a href="/">Prüfen</a>
   <a href="/beitraege">Beiträge</a>
+  {{if .IsAdmin}}<a href="/admin">Admin</a>{{end}}
   <form method="post" action="/logout" style="display:inline">
     <button type="submit">Abmelden</button>
   </form>