diff --git a/src/SiteSettings.php b/src/SiteSettings.php
index 706d0bb..4a03b01 100644
--- a/src/SiteSettings.php
+++ b/src/SiteSettings.php
@@ -34,10 +34,15 @@ function siteClaim(): string
     return siteSettings()['site_claim'] ?? 'journal de Cédrix · informatique, hack & loisirs';
 }
 
+function siteAuthor(): string
+{
+    return siteSettings()['site_author'] ?? '';
+}
+
 function saveSiteSettings(array $data): void
 {
     $current = siteSettings();
-    $allowed = ['site_title', 'site_claim'];
+    $allowed = ['site_title', 'site_claim', 'site_author'];
     foreach ($allowed as $key) {
         if (array_key_exists($key, $data)) {
             $val = trim((string)$data[$key]);
diff --git a/templates/admin.php b/templates/admin.php
index 1ff4e54..5b966e4 100644
--- a/templates/admin.php
+++ b/templates/admin.php
@@ -352,6 +352,14 @@ function adminStatusBadge(array $a, int $now): string
                            required maxlength="200">
                     <div class="form-text">Affiché sous le titre dans la navbar et dans le pied de page.</div>
                 </div>
+                <div class="mb-3">
+                    <label for="site-author" class="form-label small fw-semibold">Auteur principal</label>
+                    <input type="text" id="site-author" name="site_author"
+                           class="form-control form-control-sm"
+                           value="<?= htmlspecialchars(siteAuthor()) ?>"
+                           maxlength="100" placeholder="ex : Cédrix">
+                    <div class="form-text">Utilisé dans les métadonnées des articles (meta author, JSON-LD).</div>
+                </div>
                 <button type="submit" class="btn btn-primary btn-sm">Enregistrer</button>
             </form>
         </div>
diff --git a/templates/layout.php b/templates/layout.php
index 0fbf169..d7e7d4f 100644
--- a/templates/layout.php
+++ b/templates/layout.php
@@ -22,9 +22,15 @@
     <meta property="og:image:width" content="1200">
     <meta property="og:image:height" content="630">
     <?php endif; ?>
+    <?php if (!empty($metaAuthor ?? '')): ?>
+    <meta name="author" content="<?= htmlspecialchars($metaAuthor) ?>">
+    <?php endif; ?>
     <?php if (!empty($articlePublishedAt ?? '')): ?>
     <meta property="article:published_time" content="<?= htmlspecialchars(date('c', strtotime((string)$articlePublishedAt))) ?>">
     <?php endif; ?>
+    <?php if (!empty($metaAuthor ?? '')): ?>
+    <meta property="article:author" content="<?= htmlspecialchars($metaAuthor) ?>">
+    <?php endif; ?>
 
     <?php if (!empty($jsonLd ?? '')): ?>
     <script type="application/ld+json"><?= $jsonLd ?></script>
diff --git a/templates/post_view.php b/templates/post_view.php
index 9977789..cd85ec9 100644
--- a/templates/post_view.php
+++ b/templates/post_view.php
@@ -281,6 +281,9 @@ if ($ogImage === null || $ogImage === '') {
     $ogImage = $article['og_image'] ?? '';
 }
 
+// Auteur : nom affiché de l'article, sinon auteur du site
+$metaAuthor = $authorName !== '' ? $authorName : siteAuthor();
+
 // JSON-LD Article
 $jsonLdData = [
     '@context' => 'https://schema.org',
@@ -290,10 +293,10 @@ $jsonLdData = [
     'url'      => $canonical,
     'datePublished' => date('c', strtotime((string)$articlePublishedAt)),
     'dateModified'  => date('c', strtotime((string)($article['updated_at'] ?? $articlePublishedAt))),
-    'author'   => ['@type' => 'Person', 'name' => 'Cédrix'],
+    'author'   => ['@type' => 'Person', 'name' => $metaAuthor !== '' ? $metaAuthor : siteTitle()],
     'publisher' => [
         '@type' => 'Person',
-        'name'  => 'Cédrix',
+        'name'  => siteAuthor() !== '' ? siteAuthor() : siteTitle(),
         'url'   => rtrim(APP_URL, '/'),
     ],
     'inLanguage' => 'fr-FR',