diff --git a/app/forms/main/config_logos.py b/app/forms/main/config_logos.py
index 4f59a879d..0d0ac0d5a 100644
--- a/app/forms/main/config_logos.py
+++ b/app/forms/main/config_logos.py
@@ -41,11 +41,8 @@ from wtforms.fields.simple import StringField, HiddenField
 from app.models import Departement
 from app.scodoc import sco_logos, html_sco_header
 from app.scodoc import sco_utils as scu
-from app.scodoc.sco_config_actions import (
-    LogoDelete,
-    LogoUpdate,
-    LogoInsert,
-)
+
+from app.scodoc.sco_config_actions import LogoInsert
 
 from app.scodoc.sco_logos import find_logo
 
@@ -120,6 +117,8 @@ def logo_name_validator(message=None):
 class AddLogoForm(FlaskForm):
     """Formulaire permettant l'ajout d'un logo (dans un département)"""
 
+    from app.scodoc.sco_config_actions import LogoInsert
+
     dept_key = HiddenField()
     name = StringField(
         label="Nom",
@@ -160,13 +159,13 @@ class AddLogoForm(FlaskForm):
                 return LogoInsert.build_action(self.data)
         return None
 
-    def errors(self):
+    def opened(self):
         if self.do_insert.data:
             if self.name.errors:
-                return True
+                return "open"
             if self.upload.errors:
-                return True
-        return False
+                return "open"
+        return ""
 
 
 class LogoForm(FlaskForm):
@@ -184,7 +183,18 @@ class LogoForm(FlaskForm):
             )
         ],
     )
-    do_delete = SubmitField("Supprimer l'image")
+    do_delete = SubmitField("Supprimer")
+    do_rename = SubmitField("Renommer")
+    new_name = StringField(
+        label="Nom",
+        validators=[
+            logo_name_validator("Nom de logo invalide (alphanumérique, _)"),
+            validators.Length(
+                max=20, message="Un nom ne doit pas dépasser 20 caractères"
+            ),
+            validators.DataRequired("Nom de logo requis (alphanumériques ou '-')"),
+        ],
+    )
 
     def __init__(self, *args, **kwargs):
         kwargs["meta"] = {"csrf": False}
@@ -213,16 +223,24 @@ class LogoForm(FlaskForm):
                 self.titre = "Logo pied de page"
 
     def select_action(self):
+        from app.scodoc.sco_config_actions import LogoRename
+        from app.scodoc.sco_config_actions import LogoUpdate
+        from app.scodoc.sco_config_actions import LogoDelete
+
         if self.do_delete.data and self.can_delete:
             return LogoDelete.build_action(self.data)
         if self.upload.data and self.validate():
             return LogoUpdate.build_action(self.data)
+        if self.do_rename.data and self.validate():
+            return LogoRename.build_action(self.data)
         return None
 
-    def errors(self):
+    def opened(self):
         if self.upload.data and self.upload.errors:
-            return True
-        return False
+            return "open"
+        if self.new_name.data and self.new_name.errors:
+            return "open"
+        return ""
 
 
 class DeptForm(FlaskForm):
@@ -257,13 +275,13 @@ class DeptForm(FlaskForm):
             return self
         return self.index.get(logoname, None)
 
-    def errors(self):
-        if self.add_logo.errors():
-            return True
+    def opened(self):
+        if self.add_logo.opened():
+            return "open"
         for logo_form in self.logos:
-            if logo_form.errors():
-                return True
-        return False
+            if logo_form.opened():
+                return "open"
+        return ""
 
     def count(self):
         compte = len(self.logos.entries)
diff --git a/app/scodoc/sco_config_actions.py b/app/scodoc/sco_config_actions.py
index e0e9133ec..887b66084 100644
--- a/app/scodoc/sco_config_actions.py
+++ b/app/scodoc/sco_config_actions.py
@@ -28,11 +28,10 @@
 """
 
 """
-from app.models import ScoDocSiteConfig
-from app.scodoc.sco_logos import write_logo, find_logo, delete_logo
-import app
 from flask import current_app
 
+from app.scodoc.sco_logos import find_logo
+
 
 class Action:
     """Base class for all classes describing an action from from config form."""
@@ -42,9 +41,9 @@ class Action:
         self.parameters = parameters
 
     @staticmethod
-    def build_action(parameters, stream=None):
+    def build_action(parameters):
         """Check (from parameters) if some action has to be done and
-        then return list of action (or else return empty list)."""
+        then return list of action (or else return None)."""
         raise NotImplementedError
 
     def display(self):
@@ -59,6 +58,45 @@ class Action:
 GLOBAL = "_"
 
 
+class LogoRename(Action):
+    """Action: rename a logo
+    dept_id: dept_id or '-'
+    logo_id: logo_id (old name)
+    new_name: new_name
+    """
+
+    def __init__(self, parameters):
+        super().__init__(
+            f"Renommage du logo {parameters['logo_id']} en {parameters['new_name']}",
+            parameters,
+        )
+
+    @staticmethod
+    def build_action(parameters):
+        dept_id = parameters["dept_key"]
+        if dept_id == GLOBAL:
+            dept_id = None
+        parameters["dept_id"] = dept_id
+        if parameters["new_name"]:
+            logo = find_logo(
+                logoname=parameters["new_name"],
+                dept_id=parameters["dept_key"],
+                strict=True,
+            )
+            if logo is None:
+                return LogoRename(parameters)
+
+    def execute(self):
+        from app.scodoc.sco_logos import rename_logo
+
+        current_app.logger.info(self.message)
+        rename_logo(
+            old_name=self.parameters["logo_id"],
+            new_name=self.parameters["new_name"],
+            dept_id=self.parameters["dept_id"],
+        )
+
+
 class LogoUpdate(Action):
     """Action: change a logo
     dept_id: dept_id or '_',
@@ -83,6 +121,8 @@ class LogoUpdate(Action):
         return None
 
     def execute(self):
+        from app.scodoc.sco_logos import write_logo
+
         current_app.logger.info(self.message)
         write_logo(
             stream=self.parameters["upload"],
@@ -113,6 +153,8 @@ class LogoDelete(Action):
         return None
 
     def execute(self):
+        from app.scodoc.sco_logos import delete_logo
+
         current_app.logger.info(self.message)
         delete_logo(name=self.parameters["logo_id"], dept_id=self.parameters["dept_id"])
 
@@ -143,6 +185,8 @@ class LogoInsert(Action):
         return None
 
     def execute(self):
+        from app.scodoc.sco_logos import write_logo
+
         dept_id = self.parameters["dept_key"]
         if dept_id == GLOBAL:
             dept_id = None
diff --git a/app/scodoc/sco_logos.py b/app/scodoc/sco_logos.py
index 02272ce87..27ce7573d 100644
--- a/app/scodoc/sco_logos.py
+++ b/app/scodoc/sco_logos.py
@@ -89,6 +89,11 @@ def write_logo(stream, name, dept_id=None):
     Logo(logoname=name, dept_id=dept_id).create(stream)
 
 
+def rename_logo(old_name, new_name, dept_id):
+    logo = find_logo(old_name, dept_id, True)
+    logo.rename(new_name)
+
+
 def list_logos():
     """Crée l'inventaire de tous les logos existants.
     L'inventaire se présente comme un dictionnaire de dictionnaire de Logo:
@@ -285,6 +290,20 @@ class Logo:
         dt = path.stat().st_mtime
         return path.stat().st_mtime
 
+    def rename(self, new_name):
+        """Change le nom (pas le département)
+        Les éléments non utiles ne sont pas recalculés (car rechargés lors des accès ultérieurs)
+        """
+        old_path = Path(self.filepath)
+        self.logoname = secure_filename(new_name)
+        if not self.logoname:
+            self.logoname = "*** *** nom de logo invalide *** à changer ! *** ***"
+        else:
+            new_path = os.path.sep.join(
+                [self.dirpath, self.prefix + self.logoname + "." + self.suffix]
+            )
+            old_path.rename(new_path)
+
 
 def guess_image_type(stream) -> str:
     "guess image type from header in stream"
diff --git a/app/templates/config_logos.html b/app/templates/config_logos.html
index c90b0c6d0..69d18f7bd 100644
--- a/app/templates/config_logos.html
+++ b/app/templates/config_logos.html
@@ -20,28 +20,20 @@
 {% endmacro %}
 
 {% macro render_add_logo(add_logo_form) %}
-    {% if add_logo_form.errors() %}
-        <details open>
-    {% else %}
-        <details>
-    {% endif %}
-            <summary>
-                <h3>Ajouter un logo</h3>
-            </summary>
-            <div>
-                {{ render_field(add_logo_form.name) }}
-                {{ render_field(add_logo_form.upload) }}
-                {{ render_field(add_logo_form.do_insert, False, onSubmit="submit_form") }}
-            </div>
-        </details>
+    <details {{ add_logo_form.opened() }}>
+        <summary>
+            <h3>Ajouter un logo</h3>
+        </summary>
+        <div>
+            {{ render_field(add_logo_form.name) }}
+            {{ render_field(add_logo_form.upload) }}
+            {{ render_field(add_logo_form.do_insert, False, onSubmit="submit_form") }}
+        </div>
+    </details>
 {% endmacro %}
 
 {% macro render_logo(dept_form, logo_form) %}
-    {% if logo_form.errors() %}
-        <details open>
-    {% else %}
-        <details>
-    {% endif %}
+    <details {{ logo_form.opened() }}>
         {{ logo_form.hidden_tag() }}
         <summary>
             {% if logo_form.titre %}
@@ -73,6 +65,11 @@
                         <span class="wtf-field">{{ render_field(logo_form.upload, False, onchange="submit_form()") }}</span>
                     </div>
                     {% if logo_form.can_delete %}
+                        <div class="action_label">Renommer</div>
+                        <div class="action_button">
+                            {{ render_field(logo_form.new_name, False) }}
+                            {{ render_field(logo_form.do_rename, False, onSubmit="submit_form()") }}
+                        </div>
                         <div class="action_label">Supprimer l'image</div>
                         <div class="action_button">
                             {{ render_field(logo_form.do_delete, False, onSubmit="submit_form()") }}
@@ -107,11 +104,7 @@
         {% for dept_entry in form.depts.entries %}
             {% set dept_form = dept_entry.form %}
             {{ dept_entry.form.hidden_tag() }}
-        {% if dept_form.errors() %}
-            <details open>
-        {% else %}
-            <details>
-        {% endif %}
+            <details {{ dept_form.opened() }}>
             <summary>
                 <span class="entete_dept">
                     {% if dept_entry.form.is_local() %}